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AG | ODD SIZE


ALL ENGELHARD is pleased to welcome visitors to our Johnson Matthey Odd Size Definitive Page. While our focus is clearly Engelhard, we recognize that many Engelhard bullion collectors also collect Johnson Matthey bars and ingots. As such, we appreciate the opportunity to present important bullion information on the world’s second most collectible refiner, Johnson Matthey. We hope you welcome this new addition, and we look forward to your thoughts and input!

Our Definitives, below, are organized region of origin. Also note that our Definitives reflect what we believe to be the earliest examples first, followed by more recent production examples.


IMAGEWEIGHT
CLASS
OBVERSEREVERSECOMMENTARYSAMPLE
SERIAL
NUMBERS		ESTIMATED
MINTAGE
Screen Shot 2022-09-16 at 9.33.54 AM0.5g[Johnson Matthey Logo] [JOHNSON MATTHEY] [STERLING <SILVER>] [.925] [.5 GRAMS] [Serial Number]Pebble Finish0.5 gram example produced by Johnson Matthey.00016<25
1g JM1g[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [1 GRAM] [Serial Number][JM Crossed Hammers Logo Repeated Five Full Times]1 gram example produced by Johnson Matthey, United States, and believed to have been produced in 1982.B8660
E1609
E8914
E9487
F8432
G0140
<10,000
20180625_1517321g[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [1 GRAM] [Serial Number][JM Crossed Hammers Logo Repeated Five Full Times]1 gram example produced by Johnson Matthey, United States, in pendant variation.  Believed to have been produced in 1982.  Note the ‘JMC’ hallmark stamping on the attachment neck of the clasp, pictured below.
2018-07-09_17.06.18
A7845<100
JM 1g FIRST UNION1g[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [1 GRAM] [Serial Number][FIRST UNION Logo]1 gram example produced by Johnson Matthey, United States, for First Union.
A0396
A0994
<1,000
1g JM Royal Bank Toned 1g JM Royal Bank1g[ROYAL BANK Custom Logo] [ROYAL BANK] [FINE SILVER 999] [1 GRAM][Serial Number] [ROYAL BANK Custom Logo Repeated Nine Times] [JM Crossed Hammers Logo] 1 gram example produced in 1989 by Johnson Matthey, United States, for Royal Bank. Serial number assignment variations observed.
A1087
012740
<500
Screen Shot 2017-08-17 at 9.51.23 AM3.11g[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [1/10 OUNCE TROY] [Serial Number][JM Crossed Hammers Logo Repeated Five Full Times]1/10oz example produced by Johnson Matthey, United States, rarely seen.  Examples A0127 and A0128 sold via eBay auction on August 4, 2017 for $305.00 total.  Example A0156 sold via eBay auction on August 28, 2018 for $295.00.A0127
A0128
A0156		<250
unnamed-13.23995g[Circular JM&M Johnson Matthey & Mallory Logo] [ASSAYERS REFINERS] [FINE SILVER 999] [50 GRAINS]Unknown50 grains [3.23995 grams]  example produced by Johnson Matthey & Mallory, Canada.Serial Absent<250
Screen Shot 2018-11-15 at 5.04.57 PM5g[JM Crossed Hammers Logo]  [ASSAYERS REFINERS] [FINE SILVER 9999] [5 GRAMS] [Serial Number Blank]Blank
With
Border		5 gram example produced by Johnson Matthey, United States.  This 5g example is an exceedingly rare prototype piece that lacks serial number assignment and includes a refinement purity of 9999. Serial Absent<5
5-Gram (g) Johnson Matthey Silver Bar, Variety A, Obverse5-Gram (g) Johnson Matthey Silver Bar, Variety A, Reverse5g[JM Crossed Hammers Logo] [ASSAYERS REFINERS] [FINE SILVER 999] [5 GRAMS] [Serial Number]Blank
With
Border
5 gram example produced by Johnson Matthey, United States.027426
033485
056076
065073
114437
125848
165998
184448		<100,000
Screen Shot 2018-04-16 at 8.53.55 AM5g[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS REFINERS] [FINE SILVER 999] [5 GRAMS] [Serial Number]Blank
With
Border		5 gram example produced by Johnson Matthey, United States.  Similar to our above example, though demonstrates a considerably thicker obverse font.147284<5,000
JM 5g Oil Derrick5g[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS REFINERS] [FINE SILVER 999] [5 GRAMS] [Serial Number][Heart Background Image] [Oil Rig Custom Image] [USA]5 gram example produced by Johnson Matthey, United States.000693<3,000
5g JM Shipwreck5g[Image of Spanish galleon] [999 FINE SILVER] [5 GRAMS] [Serial Number] [JM Crossed Hammers Logo]Blank
With
Border		5 gram example produced in 1980 by Johnson Matthey, United States. Minted from bullion containing authentic treasure silver recovered from the wreck site of a Spanish treasure fleet, lost on July 30, 1715. Original order form mentions silver pendant and gold variations available as well. While some sources report 20k mintage, All Engelhard has not observed a serial higher than 7k, nor a gold variation. Original order form pictured below.
20140618_result37
20140618_result39
Johnson Matthey also produced this 5 gram variety in fine gold, pictured below.  We estimate mintage on the fine gold examples produced to be <250.
Screen Shot 2019-12-03 at 1.44.57 PM		000445
001185
002922
004648
006097
006975		<7,000
Screen Shot 2018-11-15 at 4.24.32 PM5g[TRAIL, BC] [SILVER ISSUE] [.999] [5.0 Gr.] [FINE SILVER] [5 DOLLAR TRADE VALUE] [Blank Serial Number Area][Custom Trail Image] [TRAIL SOUVENIR SILVER BAR]
5 gram example produced by Johnson Matthey, Canada, for the Trail & District Chamber of Commerce, in commemoration of  the ‘Silver Days Festival’ in British Columbia, Canada.  According to the 1993 edition of ‘Standard Catalogue of Canadian Municipal Trade Tokens & Notes’ there were 600 serial absent bars produced in 1986.  There were reportedly 1,000 serial numbered bars also produced in 1986, and 1,000 examples of similar obverse produced in 1987, although we do not yet have a photos of these varieties to provide.
IMG_0093		Serial Absent600
Screen Shot 2022-05-26 at 2.53.41 PM[TRAIL, BC] [SILVER ISSUE] [.999] [5.0 Gr.] [FINE SILVER] [5 DOLLAR TRADE VALUE] [Serial Number][Custom Trail Image] [TRAIL SOUVENIR SILVER BAR]Similar to our above entry, though includes serial number assignment.001212
001900		<100
Screen Shot 2018-11-15 at 4.23.51 PM5g[Custom Canadian Little League Championship Image] [CANADIAN LITTLE LEAGUE CHAMPIONSHIPS] [1987] [TRAIL, B.C.][Custom Trail Image] [TRAIL SOUVENIR SILVER BAR]
5 gram example produced by Johnson Matthey, Canada, for the Trail & District Chamber of Commerce, in commemoration of the Canadian Little League Championships.  Please note that although this example appears to be similar to our above 5g example, it is of no relation to the 5g pieces mentioned in the 1993 edition of ‘Standard Catalogue of Canadian Municipal Trade Tokens & Notes’.

Serial Absent50
5-Gram (g) Johnson Matthey Silver Bar, Variety B, Obverse5-Gram (g) Johnson Matthey Silver Bar, Variety B, Reverse5g
[JM Crossed Hammers Logo] [JOHNSON MATTHEY [ASSAYERS & REFINERS] [FINE SILVER 999] [5 GRAMS] [Serial Number][JM Crossed Hammers Logo Repeated Six Full Times]5 gram example produced by Johnson Matthey, United States. Appears most serial numbers are in the 500,000 range, whereas earlier variety appear to end at just under 200,000. We speculate JM skipped serial numbers.200xxx
201xxx
53xxx8
572472
586387
623626
633297
644346		<100,000
5g JM Spectronic Superstar5g[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [5 GRAMS] [Serial Number][SPECTRONIC SUPERSTAR Space Theme Logo]5 gram example produced by Johnson Matthey, United States, for Spectronic Superstar.
0148
0181
0189
0217
<500
Screen Shot 2018-09-18 at 4.12.27 PM5g[Image of Panda with Bamboo Stick] [Yin & Yang Symbol][Custom Lined Triangle Logo] [BEAUTIFUL BULLION BAR] [Star in Box Logo] [[JM Crossed Hammers Logo] [.999] [5 grams Silver]5 gram example produced by Johnson Matthey, United States.Serial Absent<250
Screen Shot 2018-09-18 at 4.14.31 PM

5g[Koalagram] [5 gm] [FINE SILVER] [999] [JM Crossed Hammers Logo] [Serial Number]
[Image of a Koala Bear]5 gram example produced by Johnson Matthey, United States.00049
00768
<1,000
Screen Shot 2020-01-07 at 6.32.36 AM5g[MG Circular Logo] [FINE SILVER] [999] [5 GRAMS][MATTHEY GARRETT]5 gram example produced by Matthey Garrett, Australia.Serial Absent<10
IMG_66715g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [-MILANO-] [JOHNSON MATTHEY & CO. LTD +LONDON+] [CONSOCIATA ITALIANA] [-Ag999 0/00]Unknown5 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A. in pendant variation.Serial Absent<10
100 grains JMM 6.48 grams100 grains
6.48g		[Circular JM&M Johnson Matthey & Mallory Logo] [ASSAYERS REFINERS] [FINE SILVER 999] [100 GRAINS]Unknown100 grains | 6.48g example produced by Johnson Matthey & Mallory, Canada.Serial Absent<100
Screen Shot 2018-04-10 at 8.57.18 AM10g[Unique JM Hallmark] [JOHNSON MATTHEY] [10 GR][10 GR] [FINE SILVER] [999] [JOHNSON MATTHEY & PAUWELS] [BRUXELLES BRUSSEL]Exceptionally rare 10g pendant produced by Johnson Matthey, Brussels.Serial Absent<50
Screen Shot 2022-05-26 at 2.34.46 PM10g[JM Crossed Hammers Logo] [ASSAYERS REFINERS] [FINE SILVER 999] [10 GRAMS]Blank
With
Border		10 gram example produced by Johnson Matthey, United States.Serial Absent<1,000
JM 10g10g[JM Crossed Hammers Logo] [ASSAYERS REFINERS] [FINE SILVER 999] [10 GRAMS] [Serial Number]Blank
With
Border		10 gram example produced by Johnson Matthey, United States. 001179
001859
003594		<3,000
Screen Shot 2021-04-07 at 3.17.40 PM10g[JM Crossed Hammers Logo] [ASSAYERS REFINERS] [FINE SILVER 999] [10 GRAMS] [Serial Number]Blank
With
Border		10 gram example produced by Johnson Matthey, United States.  Originally issued in sealed plastic with pendant bezel.014997<250
JM 10g ELECTREX10g[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [10g][ELECTREX Custom Font] [’84’] [Serial Number]10 gram example produced by Johnson Matthey, United States, for ELECTREX. Possibly produced in London.
WE0144<250
Post#9310g[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [10g]Blank with Border10 gram example produced by Johnson Matthey, United States.019385<5,000
10g JM10g[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [10 GRAMS] [Serial Number][JM Crossed Hammers Logo Repeated Five Full Times]10 gram example produced by Johnson Matthey, United States.  Similar to our example above, though demonstrates repeated JM Crossed Hammer Logo.019596
020272
020885
023369		<5,000
Screen Shot 2018-04-16 at 8.06.18 AM10g[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [10 GRAMS] [Serial Number][25 Years] [Wisconsin Cheese Bar] [February 1986]10 gram example produced by Johnson Matthey, United States, in celebration of the 25th Anniversary of Wisconsin Cheese Bar.  Originally issued in sealed plastic, as pictured below.
Screen Shot 2018-04-16 at 8.07.05 AM
000201<100
10-Gram (g) Johnson Matthey Silver Bar, JAMC, Obverse10-Gram (g) Johnson Matthey Silver Bar, JAMC, Reverse10g[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [10 GRAMS] [Serial Number][JMAC ® Custom Logo Repeated Six Full Times]10 gram example produced by Johnson Matthey, United States, JMAC ®.000489<1,000
JM 10g NERCO10g[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [10 GRAMS] [Serial Number][N Custom NERCO Logo] [NERCO] [NERCO MINERALS CO.]10 gram example produced by Johnson Matthey, United States, for Nerco Minerals Company.
1007
1200
1247		<1,500
Screen Shot 2018-09-06 at 8.28.46 AM10g[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [10 GRAMS] [Serial Number][N Custom NERCO Logo] [NERCO] [NERCO MINERALS CO.]10 gram example produced by Johnson Matthey, United States, for Nerco Minerals Company.  Similar to our above example, but demonstrates a less bold font on the reverse ‘NERCO’ stamping.051527
051669		<1,500
Screen Shot 2020-02-03 at 7.18.35 AM10g[Citibank Custom Logo] [CITIBANK with Logo] [FINE SILVER 999] [10 GRAMS] [Serial Number][Repeating Citibank Custom Logo]10 gram example produced by Johnson Matthey for Citibank.001298<50
Screen Shot 2020-02-03 at 7.24.24 AM10g[JOHNSON MATTHEY] [JM Crossed Hammers Logo] [10 GRAMMES] [FINE SILVER][THE B.J.G.F. BENEVOLENT SOCIETY BALL 1993]10 gram example produced by Johnson Matthey for the British Jewelers, Giftware and Finishers Society, issued upon their annual fundraising ball.Serial Absent<25
JMM 10g10g[Circular JM&M Johnson Matthey & Mallory Logo] [ASSAYERS REFINERS] [FINE SILVER 999] [10 GRAMS]Blank
With Border		10 gram example produced by Johnson Matthey & Mallory, Canada.Serial Absent<1,000
screen-shot-2016-10-17-at-9-53-33-am10g[MG Matthey Garrett Circular Hallmark] [FINE SILVER] [999] [10 GRAMS]Matthey Garrett10 gram pendant produced by Matthey Garrett, Australia.Serial Absent<200
IMG_257915g[JM&Co] [London Lion Hallmark] [Lion Passant Silver Hallmark] [1977 Letter ‘C’ Silver Jubilee Hallmark] [1977 Queen Elizabeth Silver Jubilee Hallmark]Blank15 gram pendant produced by Johnson Matthey for the 1977 Silver Jubilee commemoration of Queen Elizabeth’s 25th anniversary.Serial Absent<25
unnamed-215.5517g[MG Matthey Garrett Circular Hallmark] [FINE SILVER] [999] [1/2 oz TROY]Cast Finish1/2 oz pendant produced by Matthey Garrett, Australia.  Originally issued in custom ‘Australian Silver’ pouch, pictured below.unnamed-3Serial Absent<100
Screen Shot 2022-06-16 at 7.31.31 PM15.50g[JM&Co] [London Lion Hallmark] [Lion Passant Silver Hallmark] [1978 Letter ‘D’ Silver Jubilee Hallmark]Blank15.50 gram pendant produced by Johnson Matthey for the 1977 Silver Jubilee commemoration of Queen Elizabeth’s 25th anniversary.Serial Absent<25
Screen Shot 2018-08-29 at 5.36.56 PM1/2oz[BUFFALO] [Image of Buffalo] [SESQUICENTENNIAL] [1832-1982] [150 YEARS OF PRIDE AND ACHIEVEMENT][1/2 OUNCE TROY] [SEAL OF THE CITY OF BUFFALO Circular Logo] [Image of Buffalo City Inner Circle] [FINE SILVER] [999] [JM Crossed Hammers Logo]½ oz example produced in 1982 by Johnson Matthey for the City of Buffalo, New York.Serial Absent<50
Half Oz JM Old1/2oz[JM Crossed Hammers Logo] [ASSAYERS REFINERS] [FINE SILVER 999] [1/2 OZ.] [Serial Number]Blank
Without
Border		1/2oz example produced by Johnson Matthey, Canada.000985
001373
001432
001607
004820
005014
005607
007427
007686 		<5,000
Screen Shot 2018-12-16 at 4.42.48 PM1/2oz[JM Crossed Hammers Logo] [ASSAYERS REFINERS] [FINE SILVER 999] [1/2 OZ.] [Serial Number]Blank
Without
Border		1/2oz example produced by Johnson Matthey, Canada.  Similar to our above example, though includes a border on the reverse.007562
008433
008507

<100
Screen Shot 2017-04-17 at 10.12.30 AM1/2oz

[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [1/2 OUNCE TROY] [Serial Number]

[Swish ® Custom Logo]

Exceedingly rare 1/2oz example produced by Johnson Matthey for Swish ®, a Canadian based firm, which is a distributor of innovative sanitation solutions in Canada and the United States that was established in 1956 in Peterborough, Ontario.

1369
1646		<50
JM Half Oz1/2oz[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [1/2 OUNCE TROY] [Serial Number][Square JM Logo and Mining Tool Oval Logo Repeated Five Full Times]1/2oz example produced by Johnson Matthey, United States.010976
013097
016669
018865		<10,000
Half OZ JM Dee Gold Mining1/2oz[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [1/2 OUNCE TROY] [Serial Number][DEE GOLD MINING CO.] [NEVADA] [1984]1/2oz example produced by Johnson Matthey, United States, for Dee Gold Mining Company.
00131<250
20g JM WB Reverse20g[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [20 GRAMS] [Serial Number][WB Custom Logos Repeated Multiple Times]20 gram example produced by Johnson Matthey, United States, for Belgian Bank Weghsteen & Billiet.  Originally issued in a presentation box, pictured below.
20220812_111014 20220812_111421		000363<100
20g JMM20g[Circular JM&M Johnson Matthey & Mallory Logo] [ASSAYERS REFINERS] [FINE SILVER 999] [20 GRAMS]Blank
Without
Border		20 gram example produced by Johnson Matthey & Mallory, Canada.Serial Absent<1,000
unnamed-120g[GUARANTEED BY] [Johnson Matthey] [LONDON] [REFINERS & ASSAYERS][JMC&Co.] [Lion Passant Sterling Hallmark] [Lion Head London Hallmark] [London Assay Office ‘r’ Hallmark]Exceedingly rare 20g sterling silver example produced by Johnson Matthey, London.Serial Absent<50
Screen Shot 2018-07-13 at 9.58.59 AM49.7g[GARANTITO] [DALLA] [METALLI PRIZIOSI spa] [PADERNO DUGNANO] [MILANO] [JOHNSON MATTHEY & CO. LTD. – LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Oval] [-Ag999 0/100][Image of Neptune] [IL NETTUNO SI RACCONTA] [Custom Hallmark Image]Believed to be a prototype 50 gram weight class MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  This example features roughly cast imaging on the reverse and Sigma tests at only .900 purity, leading one to believe it is in fact a prototype example.Serial Absent<10
Screen Shot 2017-10-20 at 1.12.44 PM50g[Glaverbel Custom Logo] [Glaverbel] [MOUSTIER] [1884-1984][ARGENT FIN] [999] [50 G] [JOHNSON MATTHEY BRUSSELS Oval Logo] [Ag 999 Inner Oval]50g example produced by Johnson Matthey, Brussels.  This example was produced for Glaverbel in celebration of its 100 year anniversary.  Glaverbel is a leading glass producing company, producing a reported 25,000 tonnes of glass each day in 10 different colors.Serial Absent<50
Screen Shot 2024-01-05 at 12.43.15 PM50g[GARANTITO] [DALLA] [METALLI PRIZIOIS S.p.A.] [PADERNO DUGNANO] [MILANO] [JOHNSON MATTHEY & CO. LTD. – LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Oval] [-Ag999 0/00][Custom Cassa Rurale Logo] [CASSA RURALE] [ED ARTIGIANA] [DI MONTEREALE] [NUOVA SEDE] [1984]Earliest variety 50 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  Produced in honor of the Cassa Rurale Ed Artigiana’s new banking headquarters in Montereale, Italy.Serial Absent<25
unnamed-150g[GARANTITO] [DALLA] [METALLI PRIZIOSI spa] [PADERNO DUGNANO] [MILANO] [JOHNSON MATTHEY & CO. LTD. – LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Oval] [-Ag999 0/100]Blank
With
Border		Earliest variety 50 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  This example is not as thick as the other two later produced bars without blank reverse, pictured below.  It demonstrates a glossy, not matte finish.  A former director of MP explained the difference in surface finish resulted from silver foil production method vs. silver powder method for the later produced examples.  Please note differences in font, especially purity stamping character observed at bottom of obverse.Serial Absent<100
50g JM MP Itlay Blank Reverse50g[GARANTITO] [DALLA] [METALLI PRIZIOIS S.p.A.] [PADERNO DUGNANO] [MILANO] [JOHNSON MATTHEY & CO. LTD. – LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Oval] [-Ag999 0/00]Blank
With
Border		50 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  This example is not as thick as the two later produced bars without blank reverse, pictured below.  It demonstrates a glossy, not matte finish.  A former director of MP explained the difference in surface finish resulted from silver foil production method vs. silver powder method for the later produced examples.  Please note differences in font, especially purity stamping character observed at bottom of obverse.  These differences are shared with the two blank reverse examples, pictured below.Serial Absent<250
Screen Shot 2019-02-04 at 1.48.27 PM50g[GARANTITO] [DALLA] [METALLI PRIZIOSI spa] [PADERNO DUGNANO] [MILANO] [JOHNSON MATTHEY & CO. LTD. – LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Oval] [-Ag999 0/100][Reversed ’52] [AAOI] [AAROI] [’92] [4° CONGRESSO] [NAZIONALE]50 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  This example was produced in limited quantity in commemoration of the 4th National Congress of the medical associations AAOI and AAROI.Serial Absent<50
Screen Shot 2016-03-07 at 9.36.51 AM50g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [MILANO] [JOHNSON MATTHEY & CO. LTD. – LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Oval] [-Ag999 0/00][MP Diamond Logo] [50 GRAMMI] [FINE SILVER] [999.0] [MADE IN ITALY]50 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  Originally issued in presentation case, pictured below.unnamed-9Serial Absent<500
Screen Shot 2016-03-07 at 9.38.06 AM50g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [MILANO] [JOHNSON MATTHEY & CO. LTD. – LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Oval] [-Ag999 0/00][MP Diamond Logo] [50 GRAMMI] [FINE SILVER] [999,0] [MADE IN ITALY]50 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A. This variety demonstrates a slightly different obverse font as well as a unique 999,0 purity designation, with a comma instead of decimal, as opposed to the more common 999.00 designation, listed above.Serial Absent<100
Screen Shot 2019-05-03 at 9.58.30 AM50g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [MILANO] [JOHNSON MATTHEY & CO. LTD. – LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Oval] [-Ag999 0/00][Con i complimenti della TUBIFLEX]50 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  This example was produced for TUBIFLEX SpA, an Italian company specializing in custom of flexible tubing .  Please note the reverse is blank without a border.Serial Absent<25
Screen Shot 2018-12-03 at 9.28.42 AM50g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [MILANO] [JOHNSON MATTHEY & CO. LTD. – LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Oval] [-Ag999 0/00][Colorized Interlocking Olympic Rings] [G.S. INTER CLUB] [Paglini Renault] [1961-1986]50 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  This example was produced in limited quantity in commemoration of a sporting event, likely sponsored by Paglini Renault.  Please note the uniquely colorized reverse that is blank without a border.Serial Absent<25
Screen Shot 2018-11-21 at 4.58.15 PM50g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [MILANO] [JOHNSON MATTHEY & CO. LTD. – LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Oval] [-Ag999 0/00][Custom CRESPI GOMME Logo] [CRESPIgomme]50 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  This example was commissioned by Crespi Gomme SpA, an Italian tire company that was founded in 1961.  The Company’s line of business includes distributing tires and tubes for passenger and commercial vehicles.

Serial Absent<25
Screen Shot 2018-04-16 at 7.56.20 AM50g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [MILANO] [JOHNSON MATTHEY & CO. LTD. – LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Oval] [-Ag999 0/00][MP Diamond Logo] [50 GRAMMI] [FINE SILVER] [999,0] [MADE IN ITALY]50 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  Similar to our above examples, but demonstrates a completely different ‘METALLI PRIZIOSI S.p.A.’ font and a flatter, thinner font elsewhere on the obverse.  Also, the rectangular box next tot he purity stamp on the reverse is noticeably larger.Serial Absent<50
Screen Shot 2017-01-24 at 5.39.46 PM3/4oz[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [¾ OUNCE TROY] [Serial Number][Swish ® Custom Logo]Exceedingly rare 3/4oz example produced by Johnson Matthey for Swish ®.  We are unaware what the Swish ® logo represents and welcome any insight from our collector community.001035<100
Screen Shot 2023-12-01 at 3.05.14 PM2oz[MATTHEY GARRETT Oval Logo][BISLEY JUBILEE] [FINE SILVER]2oz weight class in ingot variation, produced by Matthey Garrett in celebration of the Bisley Silver Jubilee Gala of 1976-1977.Serial Absent

>25
IMG_01762oz[J M & M LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval] [999] [2 OZ.] Cast FinishExceedingly rare 2oz example produced by Johnson Matthey, Canada.Serial Absent<10
IMG_47342oz[J M & M LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval] [2 OZ.] [999]Cast FinishExceedingly rare 2oz example produced by Johnson Matthey, Canada.Serial Absent<50
image72oz[Oval MATTHEY GARRETT Hallmark][BISLEY JUBILEE] [FINE SILVER]2oz weight class in extruded variation, produced by Matthey Garrett in celebration of the Bisley Silver Jubilee Gala of 1976-1977.
image5 image9		Serial Absent<25
JM 2oz 22oz[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [2 OUNCES TROY] [Serial Number]Blank
Without
Border		2oz example produced by Johnson Matthey, United States. Early variety with three lines within purity designation box. Bar width and height are of standard 1oz bar dimension, though thickness is doubled.
000053
000338
003342
004348
005413
005817		<5,000
JM 2oz2oz[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [2 OUNCES TROY] [Serial Number][JM Crossed Hammers Logo Repeated Six Full Times]2oz example produced by Johnson Matthey, United States. Bar width and height are of standard 1oz bar dimension, though thickness is doubled.
006244
008233
010204
011404
012160
015973
016487		<10,000
Screen Shot 2018-04-16 at 8.20.59 AM2oz[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [2 OUNCES TROY] [Serial Number][SPECTRONIC SUPERSTAR Space Theme Logo]Exceedingly rare 2oz example produced in 1982 by Johnson Matthey for Spectronic Superstar.0002<10
Screen Shot 2017-11-28 at 9.56.27 AM2oz[Equity Silver Mines Limited Custom Logo] [EQUITY SILVER MINES LIMITED][JM Crossed Hammers Logo Repeated Six Full Times]2oz example produced  by Johnson Matthey, United States, for Equity Silver Mines Limited. Bar width and height are of standard 1oz bar dimension, though thickness is doubled.Serial Absent<100
2oz JM The Printing House2oz[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [2 OUNCES TROY] [Serial Number][COPIES IN MINUTES, MINUTES AWAY] [Printing House Custom Logo] [THE PRINTING HOUSE] [THANK YOU] [Celebration 25 Years in Business]2oz example produced in 1986 by Johnson Matthey, United States, for The Printing House. Bar width and height are of standard 1oz bar dimension, though thickness is doubled.000034
000054		<100
alexander's 2oz2oz[Custom Image of Woman and Building] [Alexander’s][$50] [ALEXANDER’S] [$50] [FINE SILVER] [2 OZ.TR.] [JM Crossed Hammers Logo] [MERCHANDISE CONVERTIBLE] [GIFT INGOT] [.999 FINE] [Serial Number]1oz example produced by Johnson Matthey, United States, for Alexander’s.000612<1,000
1oz JM HB Fuller Company2oz[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [2 OUNCES TROY] [Frosted Rectangle][H.B. Fuller Company Custom Logo] [H.B. Fuller Company]2oz example produced by Johnson Matthey, United States, for the H.B. Fuller Company.
Serial Absent<100
80g JM London80g[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval]Cast Finish80 gram example produced by Johnson Matthey, London.Serial Absent<100
SONY DSC3oz[JMC Rectangular Logo] [Maple Leaf Logo] [999+] [3OZ]Cast Finish3oz example produced by Johnson Matthey, Canada. A collector set of 3oz, 4oz, 5oz, 7oz and 10oz ingots was offered in 1965 by Guardian Trust Company of Montreal, Canada, for $57.03 not including postage – documented at this LINK. The collector set was available in two sizes, which may be found at this LINK.  One known example demonstrates a  ‘+’ error stamp over the last ‘9’ of the purity stamp, pictured below.
10		Serial Absent<5,000
IMG_18713oz[JMC Rectangular Logo] [Maple Leaf Logo] [999+] [3 OZ]Cast Finish3oz example produced by Johnson Matthey, Canada. Similar to our example above though demonstrates a font variation on the ‘3’ for weight class assignment.  A collector set of 3oz, 4oz, 5oz, 7oz and 10oz ingots was offered in 1965 by Guardian Trust Company of Montreal, Canada, for $57.03 not including postage – documented at this LINK. The collector set was available in two sizes, which may be found at this LINK.Serial Absent<250
unnamed3oz[JMC Rectangular Logo] [Maple Leaf Logo] [999+] [3 OZ]Cast Finish3oz example produced by Johnson Matthey, Canada. Similar to our example above though demonstrates a serif font variation on the ‘Z’ of weight class stamp.  Serial Absent<250
3oz NO MPALE3oz[JMC Rectangular Logo] [999+] [3 OZ]Cast Finish
3oz example produced by Johnson Matthey, Canada. Considerably more rare variation of our example directly above. These ingots were also offered in a collector set which may be found at this LINK.Serial Absent<500
20171101_17025320171101_17030020171101_170403Screen Shot 2017-11-14 at 11.47.30 AM3oz[Northgate Exploration LTD. Hallmark][ NORTHGATE EXPLORATION LTD.] [TYNAGH MINE] [IRELAND]Cast Finish3oz example produced by Johnson Matthey, Ireland for the Northgate Exploration company.Serial Absent<10
3oz JM London3oz[GUARANTEED BY] [JOHNSON MATTHEY] [LONDON] [REFINERS TO THE BANK OF ENGLAND][DOW BANKING CORPORATION] [Diamond Shaped DOW Custom Logo] [THREE OUNCES] [FINE SILVER]3oz example produced by Johnson Matthey, London, for Dow Banking Corporation. Originally issued in either a custom sleeve or blue collector case, pictured below.
20140528_JM3ozbarCover_opt
unnamed
Serial Absent<500
Screen Shot 2015-03-19 at 12.47.32 PM100g[100 GRAMS] [999] [FINE SILVER] [JOHNSON MATTHEY & MALLORY LIMITED] [ASSAYERS AND REFINERS] [CANADA] [Serial Number]Blank
Without
Border		100 gram example produced by Johnson Matthey & Mallory, Canada.000064
000297
000335
001103
001228
001408
001703
001707
002130		<2,250
Screen Shot 2018-03-19 at 10.43.50 AM100g[100 GRAMS] [999] [FINE SILVER] [JOHNSON MATTHEY & MALLORY LIMITED] [ASSAYERS AND REFINERS] [CANADA] [Serial Number][OFFICIAL OPENING OF BRAMPTON REFINERY] [MAY 12 TH 1976] [Image of Brampton Refinery] [JOHNSON MATTHEY & MALLORY LIMITED]100g example produced by Johnson Matthey & Mallory Limited in celebration of the Brampton Refinery in Ontario, Canada on May 12th, 1976.000003<15
Screen Shot 2018-10-12 at 12.09.02 PM100g[100 GRAMS] [999] [FINE SILVER] [JOHNSON MATTHEY & MALLORY LIMITED] [ASSAYERS AND REFINERS] [CANADA][Custom DEAK-PERERA Hallmark] [DEAK-PERERA Custom Banner Logo]100g example produced by Johnson Matthey & Mallory Limited in serial absent variation for Deak-Perera.Serial
Absent		<25
100g JM London100g[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval]Cast Finish100 gram example produced by Johnson Matthey, London.Serial Absent<500
Screen Shot 2017-10-20 at 1.47.00 PM100g[CAMBIO + VALORENBANK][ZURICH] [100] [C+V Custom Logo] [GRMS] [FEIN SILBER] [999][GUARANTEED BY] [JOHNSON MATTHEY] [LONDON] [REFINERS TO THE BANK OF ENGLAND]100 gram example produced by Johnson Matthey, London, for Cambio + Valorenbank.  Originally issued in a custom storage pouch, pictured.
s-l1600-1		Serial Absent<100
100g JM National Bank of Commerce100g[NATIONAL BANK OF COMMERCE] [OF SEATTLE] [NBC Vertical Oval Logo] [100 GRMS] [FINE SILVER][GUARANTEED BY] [JOHNSON MATTHEY] [LONDON] [REFINERS TO THE BANK OF ENGLAND]100 gram example produced by Johnson Matthey, London, for National Bank of Commerce.Serial Absent<1,000
100g JM Schweizerischer100g[SCHWEIZERISCHER BANKVEREIN] [Schweixerischer Bankverin Boxed Key Logo 1872] [100GRAMM] [999][GUARANTEED BY] [JOHNSON MATTHEY] [LONDON] [REFINERS TO THE BANK OF ENGLAND]100 gram example produced by Johnson Matthey, London, for Schweizerischer Bankverein.Serial Absent<1,000
Screen Shot 2015-11-24 at 9.23.51 AM100g[JMC Diamond Logo] [FINE SILVER] [100 GRMS] [Crossed Hammers Logo][GUARANTEED BY] [JOHNSON MATTHEY] [LONDON] [REFINERS TO THE BANK OF ENGLAND]100 gram example produced by Johnson Matthey, London. Serial Absent<500
100g JM LONDON100g[JMC Diamond Logo] [FINE SILVER] [100 GRMS] [Crossed Hammers Logo][GUARANTEED BY] [JOHNSON MATTHEY] [LONDON] [REFINERS & ASSAYERS]100 gram example produced by Johnson Matthey, London. Issued with presentation case, pictured below.

IMG_7582
Serial Absent<500
JM 100g BOXED100g[JOHNSON MATTHEY BANKERS LIMITED with Crossed Hammers Logo] [100 grammes] [999 FINE SILVER BULLION] [Serial Number][999 Oval Repeated Three Times] [Crossed Hammers Logo Repeated Four Times] [999 Oval Repeated Three Times]

100 gram pressed example produced by Johnson Matthey, London. Originally issued in presentation case, pictured below.  Some examples demonstrate a leading edge stamp set [J.M.LTD.] [CHINESE SYMBOL] [9534 in Oval] [1], one variety of which is also pictured below.  Examples with British Hallmark stampings on the leading edge are also pictured, to include a year of production key. 

17DB3E2D9E594C30B24CE53F3FDE10E9 copyJM 100g BOXScreen Shot 2021-03-02 at 7.18.01 PM		501235
501585
501660
501644
502814		<500
100g JM London Blank Engraved Reverse100g[JOHNSON MATTHEY BANKERS LIMITED with Crossed Hammers Logo] [100 grammes] [999 FINE SILVER BULLION] [Serial Number][PRESENTED BY STE PIERRE SMIRNOFF FLS TO BRIAN & GRETA ASHMORE ON THE OCCASION OF THEIR SILVER WEDDING ANNIVERSARY] [1st NOVEMBER 1977]100 gram pressed example produced by Johnson Matthey, London. A Blank variation of our example, above, sourced specifically for the custom engraving. Originally issued in presentation case, pictured below.
100g JM London Blank Engraved Reverse Case
506263<100
100g JM 1977100g[SCANDINAVIAN BANK LIMITED LIMITED Oval Logo] [1977 Inner Oval] [100 grammes] [999 FINE SILVER BULLION] [Serial Number][999 Oval Repeated Three Times] [Crossed Hammers Logo Repeated Four Times] [999 Oval Repeated Three Times]100 gram pressed example produced by Johnson Matthey, London, for Scandinavian Bank, Limited. 350 examples produced, originally issued in presentation case, pictured below. Issuance certificate viewable at this LINK.IMG_7565IMG_7558288<500
1011100g[Custom C.E. Heath & Co Ltd Logo] [Presented by C.E. Heath & Co Ltd on the occasion of the] [SILVER JUBILEE] [of H M Queen Elizabeth II] [1977][100 grammes] [- 999 PURE SILVER -] [JMM Hallmark][London Lion Hallmark] [Lion Passant Silver Hallmark] [1977 Letter ‘C’ Silver Jubilee Hallmark] [1977 Queen Elizabeth Silver Jubilee Hallmark] 100 gram pressed example produced by Johnson Matthey for the 1977 Silver Jubilee commemoration of Queen Elizabeth’s 25th anniversary.Serial Absent<500
100g Matthey Garrett100g[MG Circular Logo] [100 grammes] [Matthey Garrett] [999 FINE SILVER]Pebbled Finish100g example produced by Matthey Garrett, Australia. Originally issued in presentation box, pictured below.
100g MG JM Box
Serial Absent<500
screen-shot-2016-10-24-at-4-07-39-pm100g[MG Circular Logo] [999] [100 Gm]Blank
Without
Border		Exceedingly rare 100g example produced by Matthey Garrett, Australia.Serial Absent<50
Screen Shot 2016-05-17 at 8.35.25 AM100g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [-MILANO-] [JOHNSON MATTHEY & CO. LTD +LONDON+] [CONSOCIATA ITALIANA] [-Ag999 0/00][MP Diamond Logo] [100 GRAMMI] [FINE SILVER] [999,0] [MADE IN ITALY]100 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  Originally issued in presentation box, pictured below.
unnamed-2		Serial Absent<500
100g JM Italy MP100g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [-MILANO-] [JOHNSON MATTHEY & CO. LTD +LONDON+] [CONSOCIATA ITALIANA] [-Ag999 0/00]Blank
With
Border		100 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.
Serial Absent<500
Screen Shot 2018-12-03 at 4.37.28 PM100g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [-MILANO-] [JOHNSON MATTHEY & CO. LTD +LONDON+] [CONSOCIATA ITALIANA] [-Ag999 0/00]Blank
With
Border		100 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  Similar to our above example, but demonstrates a more bold font on the ‘Metalli Preziosi S.p.A.’ stamping.  Also features a granite sparkle-like finish.Serial Absent<100
Screen Shot 2016-08-11 at 10.17.33 AM100g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [-MILANO-] [JOHNSON MATTHEY & CO. LTD +LONDON+] [CONSOCIATA ITALIANA] [-Ag999 0/00][CCC] [CONSTRUZIONI CIVILI CERASI] [SOCIETA PER AZIONI] [ROMA] [1951-1981] [100 GRAMMI ARGENTO 9990/00]100 gram MP example produced in 1981 by Johnson Matthey, London, for Metalli Preziosi S.p.A. in commemoration of the civili construction ‘joint stock’ company Construzioni Civili Cerasi.Serial Absent<50
100g-JM-ITALIA100g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [-MILANO-] [JOHNSON MATTHEY & CO. LTD +LONDON+] [CONSOCIATA ITALIANA] [-Ag999 0/00]Blank with Custom Production Engraving [PERMIO] [DIRECTA-1988] [MASCAGNI Custom Logo]100 gram MP example produced in 1988 by Johnson Matthey, London, for Metalli Preziosi S.p.A. Some examples originally issued in presentation case, pictured below.

IMG_7585		Serial Absent<10
Screen Shot 2018-11-21 at 5.10.17 PM100g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [-MILANO-] [JOHNSON MATTHEY & CO. LTD +LONDON+] [CONSOCIATA ITALIANA] [-Ag999 0/00]Blank with Custom Production Engraving [Segafredo Zanetti Custom Logo]100 gram MP example produced in 1991 by Johnson Matthey, London, for Metalli Preziosi S.p.A.  This example was commissioned by Segafredo Zanetti in 1991 to commemorate the launching of a new production facility.  Segafredo Zanetti is one of the largest coffee companies in Italy.Serial Absent<25
Screen Shot 2017-06-29 at 2.05.59 PM100g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [-MILANO-] [JOHNSON MATTHEY & CO. LTD +LONDON+] [CONSOCIATA ITALIANA] [-Ag999 0/00][ELETTROTECNICA][ROLD Custom Logo]100 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.Serial Absent<25
Screen Shot 2015-07-15 at 9.28.31 AM100g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [-MILANO-] [JOHNSON MATTHEY & CO. LTD +LONDON+] [CONSOCIATA ITALIANA] [-Ag999 0/00][MP Diamond Logo] [100 GRAMMI] [FINE SILVER] [999,0] [MADE IN ITALY]100 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.Serial Absent<200
Screen Shot 2023-07-07 at 11.43.44100gBlank with Custom Production Engraving [Gaffarri Logo]  [-Ag999 0/00][MP Diamond Logo] [100 GRAMMI] [FINE SILVER] [999,0] [MADE IN ITALY]100 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  Originally issued in presentation box and certificate, pictured below.
357140126_3645343582355003_311385490857553531_n 357341849_647012593727598_108777252731890817_n 357354335_222682704024953_100145786854348782_n		Serial Absent<25
Screen Shot 2017-01-24 at 5.42.30 PM100g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [-MILANO-] [JOHNSON MATTHEY & CO. LTD +LONDON+] [CONSOCIATA ITALIANA] [-Ag999 0/00][Custom Logo] [100 GRAMMI] [FINE SILVER] [999,0] [MADE IN ITALY]100 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  Delchi S.p.A. was founded in 1908 by Appio Chieregatti and Aurelio Donesana as a ventilation and air conditioning equipment company.  It was acquired by American Carrier Corporation in 1983.  Our appreciation to Ramon for the information on this variety!Serial Absent<50
Screen Shot 2019-05-03 at 10.17.25 AM100g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [MILANO] [JOHNSON MATTHEY & CO. LTD. – LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Oval] [-Ag999 0/00][TUBIFLEX Logo]100 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  This example was produced for TUBIFLEX SpA, an Italian company specializing in custom of flexible tubing .  Please note the reverse is blank without a border.Serial Absent<25
Screen Shot 2019-05-03 at 10.06.33 AM100g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [MILANO] [JOHNSON MATTHEY & CO. LTD. – LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Oval] [-Ag999 0/00][Con i complimenti della TUBIFLEX]100 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  This example was produced for TUBIFLEX SpA, an Italian company specializing in custom of flexible tubing .  Please note the reverse is blank without a border.Serial Absent<25
Screen Shot 2015-10-20 at 9.50.32 AM100g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [-MILANO-] [JOHNSON MATTHEY & CO. LTD +LONDON+] [CONSOCIATA ITALIANA] [-Ag999 0/00]Blank, without border and includes custom engraving.  This particular bar, pictured, was a 1984 custom production piece given as a prize for an Italian sporting event.100 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.Serial Absent<50
s-l500100g[JOHNSON MATTHEY BRUSSELS Oval Logo] [Ag 999 Inner Oval] [100]Cast Finish100 gram example produced by Johnson Matthey & Pauwels, Brussels.  One example sold via eBay auction on January 28, 2018 for $1,106.27.Serial Absent<50
image100g[JOHNSON MATTHEY & PAUWELS Oval Logo] [Ag 999 Inner Oval] [100]Cast Finish100 gram example produced by Johnson Matthey & Pauwels, Brussels.  Serial Absent<25
IMG_44024oz[J M & M LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval] [2 OZ.] [999]Cast FinishExceedingly rare 4oz example produced by Johnson Matthey, Canada.Serial Absent<50
SONY DSC4oz[JMC Rectangular Logo] [Maple Leaf Logo] [999+] [4 OZ]Cast Finish
4oz example produced by Johnson Matthey, Canada. A collector set of 3oz, 4oz, 5oz, 7oz and 10oz ingots was offered in 1965 by Guardian Trust Company of Montreal, Canada, for $57.03 not including postage – documented at this LINK. The collector set was available in two sizes, which may be found at this LINK.
Serial Absent<5,000
JMC 4oz4oz[JMC Rectangular Logo] [Maple Leaf Logo] [999+] [4 OZ]Cast Finish4oz example produced by Johnson Matthey, Canada.  Similar to our above example, but demonstrates a different letter ‘Z’ font on the weight class stamp.  Not the vertical legs on either end of the letter ‘Z’. These ingots were also offered in a collector set which may be found at this LINK.Serial Absent<100
4oz NO MPALE4oz[JMC Rectangular Logo] [999+] [4 OZ]Cast Finish4oz example produced by Johnson Matthey, Canada. These ingots were also offered in a collector set which may be found at this LINK.Serial Absent<500
IMG_15464oz[JMC Rectangular Logo] [999+] [4 OZ]Cast Finish4oz example produced by Johnson Matthey, Canada. Similar to our examples above, though demonstrates a number ‘0’ instead of a letter ‘o’ on the weight stamp.  Our tanks to Dan S. for this discovery!  These ingots were also offered in a collector set which may be found at this LINK.Serial Absent<10
130g JM TSB Bank130g[JM Mining Tool Logo] [999+ Cast Finish130g example produced by Johnson Matthey, Australia, in commemoration of TSB reaching $100 MIL in deposits.  TSB is New Zealand’s oldest bank, dating back to the 1850’s.Serial Absent<100
Screen Shot 2017-03-20 at 2.54.23 PM½ LB[SINGLES] [D] [CLASS] [Las Vegas Gun Club Custom Logo] [½ LB] [999 SILVER][Maims Las Vegas Hallmark] [ 999+ [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]A very interesting ½ LB TROY  [186.62g] example produced from silver assayed by Johnson Matthey, Limited, of Canada.  Maims Enterprises custom silver producer created this piece for the Las Vegas Gun Club as a Class D Singles shooter’s award.  The USPSA [United States Practical Shooting Association] defines a Class D Shooter as one of 39.9% or less accuracy.  The conversion weight on this example is 6oz, or 186.62g.Serial Absent1
20221109_184444200g[Serial Number] [Circular MG Hallmark] [.200 Kg] [.999][W&H Flag Logo] 200g example produced by Matthey Garrett, Australia.   Interestingly, the W&H flag represents Walker & Hall of Sheffield, England, pictured below.
44-09		2<50
JMC 1949 OBVERSEJMC 1949 REVERSE203.1g[JOHNSON MATTHEY & Co Ltd LONDON Circular Logo] [ELECTRO REFINED 999] [JMC] [1949 in Elongated Octagon]Machined Finish203.1 gram example produced in 1949 by Johnson Matthey, London.Serial Absent1
1-21202g[JOHNSON MATTHEY Oval Logo][FINE SILVER] [99•9% MIN.]202g example produced by Johnson Matthey.Serial Absent<100
SONY DSC7oz[JMC Rectangular Logo] [Maple Leaf Logo] [999+] [7 OZ.]Cast Finish
7oz example produced by Johnson Matthey, Canada. A collector set of 3oz, 4oz, 5oz, 7oz and 10oz ingots was offered in 1965 by Guardian Trust Company of Montreal, Canada, for $57.03 not including postage – documented at this LINK. The collector set was available in two sizes, which may be found at this LINK.
Serial Absent<5,000
unnamed7oz[JMC Rectangular Logo] [Maple Leaf Logo] [999+] [7 OZ]Cast Finish7oz example produced by Johnson Matthey, Canada. Similar to our example above, though demonstrates a larger ‘OZ’ stamping that lacks the ‘.’ application.  A collector set of 3oz, 4oz, 5oz, 7oz and 10oz ingots was offered in 1965 by Guardian Trust Company of Montreal, Canada, for $57.03 not including postage – documented at this LINK. The collector set was available in two sizes, which may be found at this LINK.Serial Absent<100
image17oz[JMC Rectangular Logo] [Maple Leaf Logo] [999+] [7 OZ.]Cast Finish7oz example produced by Johnson Matthey, Canada. Similar to our example above, though demonstrates a ‘flat top 7′ weight stamping.  A collector set of 3oz, 4oz, 5oz, 7oz and 10oz ingots was offered in 1965 by Guardian Trust Company of Montreal, Canada, for $57.03 not including postage – documented at this LINK. The collector set was available in two sizes, which may be found at this LINK.Serial Absent<100
7oz NO MAPLE7oz[JMC Rectangular Logo] [999+] [7 OZ]Cast Finish7oz example produced by Johnson Matthey, Canada. Considerably more rare variation of our example above. These ingots were also offered in a collector set which may be found at this LINK.Serial Absent<500
JM LONDON 250GRAMME250g[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [Serial Number] [250GRAMME]Cast Finish250 gram example produced by Johnson Matthey, London. Originally issued in a collector box, pictured below.
SONY DSC
J 40060<100
unnamed-1 unnamed250g[totip] [CONCORSO N.1] Schedina e colonna vincente del 30 Maggio 1948] [- Ag999 0/00][TOTIP] [SCOMMESSA PLURIMA SULLE CORSE DEI CAVALLI] [Custom Charts and Graphics] [INDICARE OGNI CON | OPPURE X OPPURE 2]250 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  This example was produced to commemorate horse racing and betting.
unnamed-2 unnamed-4 unnamed-3		Serial Absent<50
Screen Shot 2018-07-31 at 6.18.07 AM250g[GARANTITO] [DALLA] [Metalli Preziosi spa] [PADERNO DUGNANO] [-MILANO-] [JOHNSON MATTHEY & CO.LTD LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Logo] [- Ag999 0/00]Blank
With
Border		250 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  Occasionally engraved, the particular example pictured below was engraved in 1990.Screen Shot 2016-05-17 at 8.42.06 AMSerial Absent<200
Screen Shot 2015-10-20 at 9.57.31 AM250g[GARANTITO] [DALLA] [Metalli Preziosi S.p.A.] [PADERNO DUGNANO] [-MILANO-] [JOHNSON MATTHEY & CO.LTD LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Logo] [- Ag999 0/00][MP Diamond Logo] [250 GRAMMI] [FINE SILVER] [999.0] [MADE IN ITALY]250 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.Serial Absent<200
Screen Shot 2017-08-17 at 9.41.27 AM250g[GARANTITO] [DALLA] [Metalli Preziosi S.p.A.] [PADERNO DUGNANO] [-MILANO-] [JOHNSON MATTHEY & CO.LTD LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Logo] [- Ag999 0/00]Blank
Without
Border		250 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  Exceedingly rare example that we believe was custom produced for engraving though never actually engraved.  Serial Absent<5
Screen Shot 2019-05-03 at 10.13.13 AM250g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [MILANO] [JOHNSON MATTHEY & CO. LTD. – LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Oval] [-Ag999 0/00][Con i complimenti della TUBIFLEX]250 gram MP example produced by Johnson Matthey, London, for Metalli Preziosi S.p.A.  This example was produced for TUBIFLEX SpA, an Italian company specializing in custom of flexible tubing .  Please note the reverse is blank without a border.Serial Absent<25
Screen Shot 2023-10-05 at 10.32.32 AM250g[MP Diamond Logo] [250 GRAMMI] [FINE SILVER] [999.0] [MADE IN ITALY][LATI Custom Logo]250 gram MP example produced by Johnson Matthey, Italy, for LATI Industria Termoplastici S.p.A.  Officially founded in 1945, LATI is one of the most important European manufacturers of engineering thermoplastics.  Note the ‘AG 999 0/00′ stamp on the leading edge, pictured below.
IMG_0650		Serial Absent<25
Screen Shot 2018-11-26 at 10.48.21 AM3delamar-silver-mine-april-26-1977_1_d9ebccdf7f95ff15c42cd39549375fdc13oz[DeLamar Silver Mine] [April 26, 1977] [Custom Earth Resources Company Logo] [Earth Resources Company]Cast Finish13oz ingot produced by Johnson Matthey & Mallory of Toronto, Canada.  DeLamar Silver Mine was located in Southwestern Ohio and operated by  Earth Resources Company, one of the largest silver mines in the United States.  
delamar-silver-mine-april-26-1977_1_d9ebccdf7f95ff15c42cd39549375fdcIMG_6112IMG_6111		Serial Absent<25
Screen Shot 2019-07-09 at 5.54.17 PM14.20oz
14.70oz		[David Godley, LTD. Custom Hallmark] [DAVID GODLEY LTD] [LEICESTER] [ASSAY] [FINE SILVER] [‘999′] [14.7 OZS]BlankApproximate 1 Avoirdupois Pound example produced in mid to late 1960’s by Johnson Matthey, London for David Godley, LTD.  David Godley, LTD was re-established as G.C. Metals, LTD in 1971 and remains in operation.  The 14.20oz example was issued in the customary wooden presentation box as observed with the more common Johnson Matthey, London examples.
IMG_2150 IMG_2154		Serial Absent<10
JMC LONDON 14.45g14.15oz
14.20oz
14.30oz
14.35oz
14.40oz
14.45oz
14.50oz

~1 LB		[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [JMC] [Serial Number] [14•45 OZS] [FINE SILVER] [JOHNSON MATTHEY ASSAY OFFICE with Crossed Hammers Logo]BlankApproximate 1 Avoirdupois Pound example produced in mid 1960’s by Johnson Matthey, London. Observed in various weight variations. Some bars were originally issued in wooden presentation box, pictured below.
14.45oz JM London Presentation Box 1966
75958
76038
76017
76560
76640
79566
80152
82211		<5,000
Screen Shot 2018-11-26 at 11.45.25 AM14.05oz[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [JM] [Serial Number] [14•05 OZS] [FINE SILVER] [JOHNSON MATTHEY ASSAY OFFICE with Crossed Hammers Logo]BlankApproximate 1 Avoirdupois Pound example produced in mid 1960’s by Johnson Matthey, London.  Similar to our example above, but is stamped ‘JM’ instead of ‘JMC’ above the serial number.80144<100
63538581823__12BA0D86-73EE-41D4-9D74-18A9F600F1CC~1 LB[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [JMC] [Serial Number] [JOHNSON MATTHEY ASSAY OFFICE with Crossed Hammers Logo] [FINE SILVER]BlankApproximate 1 Avoirdupois Pound example produced in mid 1960’s by Johnson Matthey, London. Not marked for weight.14.45JM London Variety 27004 A
49747 A		<100
14.45oz 1969 MAYFAIR COIN London~1 LB[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [JMC] [Serial Number] [MAYFAIR COIN C. LONDON Custom Logo] [FINE SILVER]BlankApproximate 1 Avoirdupois Pound example produced in 1969 by Johnson Matthey, London, for Mayfair Coin Company. Originally issued in wooden presentation box, pictured below.
14.45oz 1969 MAYFAIR COIN London Box 214.45oz 1969 MAYFAIR COIN London Box 1
49765 A<100
JMC 50.068oz IRELAND50oz[JMC Logo] [Northgate Exploration Custom Logo] [NORTHGATE EXPLORATION LTD.] [TYNAGH MINE] [IRELAND] [999+] [50•068]Cast Finish50oz example produced by Johnson Matthey for Northgate Exploration, Ltc. Although technically an odd-sized example, this bar is also listed on our 50oz Definitive Page.
Serial Absent<500
FullSizeRender2•007kg[Circular MG Hallmark] [2•007KG] [•999]Cast Finish2.007 kg example produced by Johnson Matthey, Australia.  Early production smaller weight class designation font.  Produced in approximate 2 kg weight class.Serial Absent<500
Screen Shot 2018-07-13 at 9.13.36 AM2•001kg[Circular MG Hallmark] [ASS] [2•001KG] [999]Cast Finish2.007 kg example produced by Johnson Matthey, Australia.  While one might conclude the ‘ASS’ stamp is in reference to one’s posterior, it is in actuality representative of ‘ASSAY’. Serail Absent<250
Screen Shot 2018-06-24 at 7.57.03 AM2•001kg[W&H Flag Logo] [Circular MG Hallmark] [2•001kg] [Serial Number] [999]Cast Finish2.007 kg example produced by Johnson Matthey, Australia.  Similar to our example above, though includes W&H flag hallmark and serial number assignment.  Interestingly, the W&H flag represents Walker & Hall of Sheffield, England, pictured below.
44-09		7838<250
IMG_59452.000kg[Unique Counterstamp] [Circular MG Hallmark] [2•00Kg] [.999]Cast Finish2.000 kg example produced by Johnson Matthey, Australia.  Demonstrates unique and currently unrecognized counterstamp.  Produced in approximate 2 kg weight class.Serial
Absent		<100
10E1FF68-74BE-41A7-B817-22539C7EFE41_1_105_c2.000kg[Unique Counterstamp] [Circular MG Hallmark] [2•00Kg] {Serial Number] [.999]Cast Finish2.000 kg example produced by Johnson Matthey, Australia.  Demonstrates unique and currently unrecognized counterstamp.  Produced in approximate 2 kg weight class.  Similar to our example above, though includes a serial number assignment.6966<25
2Kg Matthey Garret Sydney Refined 92•000kg[FINE SILVER] [99•9% MIN.] [MATTHEY GARRETT PTY LTD SYDNEY Oval Logo] [REFINED BY Inner Oval] [2.000 kg]Cast Finish2.000 kg example produced by Matthey Garrett PTY LTD of Sydney, Australia.  Produced in approximate 2 kg weight class.
Serial Absent<1,000
Untitled2.011kg[FINE SILVER] [99•9% MIN.] [MATTHEY GARRETT PTY LTD SYDNEY Oval Logo] [REFINED BY Inner Oval] [2.000 kg]Cast Finish2.000 kg example produced by Matthey Garrett PTY LTD of Sydney, Australia.  Produced in approximate 2 kg weight class.  Similar to our example above though demonstrates a different weight class font.Serial Absent<1,000
JM_1999KgObv1.999kg[FINE SILVER] [99•9% MIN.] [JOHNSON MATTHEY LTD AUSTRALIA Oval Logo] [REFINED BY Inner Oval] [1.999 Kg]Cast Finish1.999 kg example produced by Johnson Matthey, Australia. Produced in approximate 2 kg weight class.
Serial Absent<2,000
20220502_1448472.012kg[MATTHEY GARRETT Oval Logo] [FINE SILVER] [99•9% MIN.] [2.012 kg]Cast Finish2.012 kg example produced by Matthey Garrett, Australia. Produced in approximate 2 kg weight class.Serial Absent<500
JM_1997KgObv1•997kg[FINE SILVER] [99•9% MIN.] [JOHNSON MATTHEY Oval Logo] [1.997 kg]Cast Finish1.997 kg example produced by Johnson Matthey, Australia. Produced in approximate 2 kg weight class.
Serial Absent<3,000
Screen Shot 2018-05-14 at 11.43.54 AM
2•000kg
[Diamond JM Logo with Crossed Hammers] [2•000Kg]  [999+]Cast Finish2.000 kg example produced by Johnson Matthey, Australia.  Serial Absent<100
unnamed-1JM 2.002kg 9474 WH
2•002kg
[W&H Flag Logo] [Diamond JM Logo with Crossed Hammers] [2•002kg]  [Serial Number] [999+]Cast FinishApproximate 2 kg example produced by Johnson Matthey, Australia.  Similar to our example above, though includes W&H flag hallmark and serial number assignment.  Interestingly, the W&H flag represents Walker & Hall of Sheffield, England, pictured below.
44-09		9469
9474
9477		<50
image1 copy5kg[JOHNSON MATHEY Oval Logo] [5 KG] [999+SILVER]Cast Finish5 kg example produced by Johnson Matthey, Australia.Serial Absent<1,000
image0035kg[FINE SILVER] [99•9% MIN] [MATTHEY GARRETT PTY LTD SYDNEY Oval Logo] [REFINED BY Inner Oval] [5•001 Kg]Cast Finish5 kg example produced by Matthey Garrett PTY, LTD, Australia.Serial Absent<250
Screen Shot 2018-02-05 at 8.27.22 AM5kg[FINE SILVER] [99•9% MIN] [MATTHEY GARRETT PTY LTD SYDNEY Oval Logo] [REFINED BY Inner Oval] [5•001 Kg]Cast Finish5 kg example produced by Matthey Garrett PTY, LTD, Australia.  Similar to our above example but demonstrates a more modern weight class font.Serial Absent<250
unnamedJM_Canada_501Oz_K001209500oz[JOHNSON MATTHEY] [Diamond JM Logo with Crossed Hammers] [501 00 oz] [Serial Number] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval] [999+] Cast Finish500oz example produced by Johnson Matthey, Canada.K000706
K001209		<1,500
image1500oz[JOHNSON MATTHEY] [Diamond JM Logo with Crossed Hammers] [501 00 oz] [Serial Number] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval] [999+][Cast Finish]500oz example produced by Johnson Matthey, Canada.  Similar to our above entry, though with vertical variation of serial number stamp placement.K000044<50
30084_Rev-2_processed500oz[JOHNSON MATTHEY] [Diamond JM Logo with Crossed Hammers] [501 00 oz] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval] [999+]Cast Finish500oz example produced by Johnson Matthey, Canada.  Similar to our above example, though in serial absent variation.Serial
Absent		<200
JM_1000Oz_Poured_2006_157131000oz[Serial Number] [Year of Production] [JOHNSON MATTHEY Above Diamond Logo] [Diamond JM Logo] [Mining Tool Logo] [Weight Designation to 1/100 oz] [999]Cast Finish2006 and 2007 London Good Delivery bars produced in approximate 1000oz weight class. Serial number assignment is not as standardized as other weight class, most likely to obfuscate the number produced. Examples of weight class include 915.30oz, 959.30oz and 1021.50oz.2006-15713 2007-18424<20,000
3c164702-3926-4e1a-94a2-0520febbd11c1000oz[JOHNSON MATTHEY COMPANY Circular Hallmark] [Serial Number] [996] [Weight Class]Cast FinishApproximate 1000oz weight class ingot produced by Johnson Matthey, Canada.
10		M27140<1,000
Screenshot 2024-04-18 at 1.19.56 PMScreenshot 2024-04-18 at 1.19.45 PM1000oz[JOHNSON MATTHEY LONDON Oval Logo] [REFINERS MELTERS Inner Oval] [999] [Serial Number] [Weight Class] Cast Finish Approximate 1000oz weight class ingot produced by Johnson Matthey, London.  This variety includes lot number stamp ‘871’ on the non-leading edge of the ingot as demonstrated in the photo below.Screenshot 2024-04-18 at 1.19.34 PM87305<5,000

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