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AG | 1/2 KILO | KILO


ALL ENGELHARD is pleased to welcome visitors to our Johnson Matthey 1/2 KILO and KILO 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 in presentation of Half Kilo weight class first, followed by Kilo examples. For each weight class, our order of examples is presented by region of origin: United States, Canada, London, Brussels and Australia. Also note that our Definitives reflect what we believe to be the earliest examples first, followed by more recent production examples.

IMAGEWEIGHT CLASSOBVERSEREVERSECOMMENTARYSAMPLE SERIAL NUMBERSESTIMATED MINTAGE
Half Kilo JM Pressed½ KILO[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [½ KILO] [Serial Number][JM Crossed Hammers Logo Repeated Five Full Times]½ KILO pressed example produced by Johnson Matthey, United States.000079
000109
001252
001979
002080
002406
002425		<3,000
1:2KILO JK1/2 KILO[Diamond JM Logo with Crossed Hammers] [½ KILO] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish½ KILO example produced by Johnson Matthey, Canada.Serial
Absent		<1,000
500G JM500g[Diamond JM Logo with Crossed Hammers] [500 G] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish500g example produced by Johnson Matthey, Canada.
Serial
Absent		<1,000
JM_500g_S010858500g[JOHNSON MATTHEY] [Diamond JM Logo with Crossed Hammers] [Serial Number Sideways on Left] [500g] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish500g example produced by Johnson Matthey, Canada. Originally issued in a blue commemorative dust jacket.S010858
S011729		<2,000
IMG_4976 copy1/2 KILO[JOHNSON MATTHEY & MALLORY Oval Logo] [CANADA Inner Oval] [1/2 KILO] [999] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish1/2 KILO example produced by Johnson Matthey & Mallory, Canada.  Originally issued in felt presentation bag, pictured below.
IMG_4976		Serial Absent<50
IMG_0020 copy½ KILO[JOHNSON MATTHEY & MALLORY Oval Logo] [CANADA Inner Oval] [1/2 KILO] [999] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish1/2 KILO example produced by Johnson Matthey & Mallory, Canada.  Similar to our above example, though in taller and more familiar casting shape.Serial Absent<25
500 grammes JM London 500g
[JOHNSON MATTHEY LONDON Oval Logo] [Mining Tool Logo Inner Oval] [500 grammes] [SILVER BULLION] [999] [Serial Number]Blank500g pressed example produced by Johnson Matthey, London.  Originally issued in presentation case, pictured below.
unnamed-1
HK10252
HK11088
HK11144
HK12781
HK12782
HK12802
HK12835		<1,000
500g SILVER JUBILLE JM500g[World Map Silver Jubilee Logo] [Presented by C.E. Heath & Co Ltd on the occasion of the SILVER JUBILEE of H M Queen Elizabeth II] [1977][500 grammes] [- 999 PURE SILVER-] [JMM Hallmark]500g Silver Jubilee commemorative bar produced by Johnson Matthey & Mallory, London. Originally issued in a velvet lined presentation box.Serial Absent<1,000
Screen Shot 2016-05-17 at 8.55.21 AM500g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [MILANO] [JOHNSON MATTHEY & CO. LTD. – LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Oval] [-Ag999 0/00]Blank, with a border.  This particular example was engraved in 1990.500 gram MP example produced by Johnson Matthey, Italy.  Originally issued in presentation case, pictured below.unnamed-3Serial Absent<50
Screen Shot 2016-05-17 at 8.49.05 AM500g[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] [500 GRAMMI] [FINE SILVER] [999.0] [MADE IN ITALY]500 gram MP example produced by Johnson Matthey, Italy.  Originally issued in presentation case, pictured below.
unnamed-2		Serial Absent<50
500GRAMME JM500g[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [Serial Number] [500GRAMME]Cast Finish500g example produced by Johnson Matthey, London.J20010<100
s-l1600500g[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [500 GRM] [SILVER] [Serial Number]Cast Finish500g example produced by Johnson Matthey, London.JM77693A
JM77710A
JM77782A		<250
JM 500g London500g[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [SILVER] [Serial Number]
Blank500g example produced by Johnson Matthey, London.JM64554A
JM2045 A		<500
JM 500g LONDON500g[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [J M C] [Serial Number] [JOHNSON MATTHEY ASSAY OFFICE Oval Logo] [Mining Tool Logo Inner Oval] [FINE SILVER]
Blank500g example produced by Johnson Matthey, London.7520 A<500
JM Barclays Half KiloHALF KILO[BARCLAYS Logo] [BARCLAYS] [FINE SILVER 999] [HALF KILO] [JOHNSON MATTHEY LONDON Oval Logo] [Mining Tool Logo Inner Oval]BlankHALF KILO example produced by Johnson Matthey, London, for Barclays.
Serial Absent<500
photo500g[JOHNSON MATTHEY & PAUWELS Oval Logo] [BRUXELLES BRUSSEL Inner Oval] [999] [500.]Cast Finish500g example produced by Johnson Matthey & Pauwels, Brussels.Serial Absent<500
JM MG .497Kg497g g[.497Kg] [MG Matthey Garrett Circular Hallmark] [.999]Cast Finish.497Kg example produced by Matthey Garrett, Australia, in rare serial absent variation.  Note the larger purity designation font.Serial Absent<100
MG 502g Australia502g[W&H Flag Logo] [MG Matthey Garrett Circular Hallmark] [502 Gm] [Serial Number] [•999]Cast Finish502g example produced by Matthey Garrett, Australia. Interestingly, the W&H flag represents Walker & Hall of Sheffield, England, pictured below.
44-09
162<250
Screen Shot 2017-10-03 at 8.29.27 AM.499kg[MG Matthey Garrett Circular Hallmark] [.501Kg] [Serial Number] [•999]Cast Finish.499kg example produced by Matthey Garrett, Australia.760<250
501g MG JM.501kg[MG Matthey Garrett Circular Hallmark] [.501Kg] [Serial Number] [•999]Cast Finish.501kg example produced by Matthey Garrett, Australia.97<250
IMG_2696.501kg[W&H Flag Logo] [MG Matthey Garrett Circular Hallmark] .[501 kg] [Serial Number] [•999]Cast Finish.501kg example produced by Matthey Garrett, Australia. Interestingly, the W&H flag represents Walker & Hall of Sheffield, England, pictured below.
44-09		412
582		<250
IMG_2057
.500kg
[MG Matthey Garrett Circular Hallmark] [•500Kg] [•999]Cast Finish.500kg example produced by Matthey Garrett, Australia, in rare serial absent variaiton.Serial Absent<250
MG 507g Australia507g[MATTHEY GARRETT Oval Logo] [FINE SILVER 99•9% MIN.] [507 grams]Cast Finish507g example produced by Matthey Garrett, Australia.  Demonstrates a rectangular-shaped casting mould.Serial
Absent		<1,500
SSS JM 003 copy496g[MATTHEY GARRETT Oval Logo] [FINE SILVER 99•9% MIN.] [496 grams]Cast Finish496g example produced by Matthey Garrett, Australia.  Similar to our above example but demonstrates a more squarely-shaped casting mould.Serial Absent<500
513 gram Matthey Garrett SCCC stamp 5513g[MATTHEY GARRETT Oval Logo] [FINE SILVER 99•9% MIN.] [SCCC Counterstamp]  [513 grams]Cast Finish513g example produced by Matthey Garrett, Australia.  Similar to our example above but includes the Southern Cross Coins & Commodities counterstamp.  Our thanks to Sandy Taylor for the discovery!  Additional information regarding the ‘SCCC’ Southern Cross Coins and Commodities counterstamp may be found at this LINK.Serial Absent<100
JM 501g501kg[JM Mining Tool Logo] [999+] [•501Kg] [W&M Flag Logo] [Serial Number]Cast Finish.501kg example produced by Johnson Matthey, Australia. Interestingly, the W&H flag represents Walker & Hall of Sheffield, England, pictured below.
44-09
892<500
0.5 kg JM Australia Early.5kg[JOHNSON MATTHEY Oval Logo] [0.5 kg] [999+SILVER]Cast Finish.5kg example produced by Johnson Matthey, Australia.Serial Absent<500
Dot 5 KILO JM.5kg[JOHNSON MATTHEY Oval Logo] [.5 KG] [999+SILVER]
Cast Finish.5kg example produced by Johnson Matthey, Australia.Serial Absent<1,000
Dot 5 KILO JM Australia.5kg[JOHNSON MATTHEY Oval Logo] [.5 KILO] [999+SILVER]Cast Finish.5kg example produced by Johnson Matthey, Australia.Serial Absent<1,000
Screen Shot 2017-01-16 at 3.14.00 PM1000g[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] [1000 GRAMMI] [FINE SILVER] [999.0] [MADE IN ITALY]1000g MP example produced by Johnson Matthey, Italy.  Serial Absent

<50

Screen Shot 2017-08-17 at 9.36.35 AM1000g[GARANTITO] [DALLA] [METALLI PRIZIOSI S.p.A.] [PADERNO DUGNANO] [MILANO] [JOHNSON MATTHEY & CO. LTD. – LONDON Oval Logo] [CONSOCIATA ITALIANA Inner Oval] [-Ag999 0/00]Blank, with a border.  1000g MP example produced by Johnson Matthey, Italy.  We believe this particular example was a custom production piece to allow the reverse engraving.Serial Absent

<5

JM KILO New1 KILO[JOHNSON MATTHEY SLC Oval Logo] [999 Inner Oval] [1 KILO] [Serial Number]Cast Finish1 KILO example produced by Johnson Matthey, United States. This is the most recently produced kilo and is no longer in production.000011
001493
002955
009323

<20,000

image1 KILO[Diamond JM Logo with Crossed Hammers] [1 KILO] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval] [999]Cast Finish1 KILO example produced by Johnson Mathey, Canada.  Early variety that includes the larger JM diamond hallmark, serial absent and lacks the ‘+’ on purity stamp.  Note the wide spacing between the ‘KILO’ letters and the ‘999+’ purity stamp.Serial Absent

<10

unnamed-21 KILO[Diamond JM Logo with Crossed Hammers] [1 KILO] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish1 KILO example produced by Johnson Matthey, Canada.  Similar to our example above, but includes the ‘+’ on the purity stamp, and demonstrates tighter spacing on it as well.Serial Absent

<250

Screen Shot 2018-08-03 at 5.17.21 PM1 KILO[Diamond JM Logo with Crossed Hammers] [1 KILO] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish1 KILO example produced by Johnson Matthey, Canada.  Note the tighter spacing between letters on the ‘KILO’ stamp and wider spacing on the ‘999+’ purity stamp.Serial Absent

<50

IMG_4163 copy 21 KILO[Diamond JM Logo with Crossed Hammers] [1 KILO] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval] [999+]Cast Finish1 KILO example produced by Johnson Matthey, Canada.  Similar to our above example, but demonstrates reverse placement of the small JM LTD oval stamp and purity stamp.   Serial Absent

<50

unnamed-11 KILO[Diamond JM Logo with Crossed Hammers] [1 KILO] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish1 KILO example produced by Johnson Matthey, Canada.  Similar to some of our above examples but demonstrates a more widely spaced ‘1 KILO’ weight class stamp and tighter spacing between the ‘999+’ purity stamping.

Serial
Absent

<25
unnamed1 KILO[Diamond JM Logo with Crossed Hammers] [1 KILO] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish1 KILO example produced by Johnson Matthey, Canada.  Note the tighter spacing on both the ‘1 KILO’ weight class stamp and the ‘999+’ purity stamp.

Serial Absent

<50
unnamed1 KILO[Diamond JM Logo with Crossed Hammers] [1 KILO] [Serial Number] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish1 KILO example in ‘A’ serial suffix, produced by Johnson Matthey, Canada.

12003 A
12424 A

<25
1-Kilogram (kg, kilo) Johnson Matthey Silver Bar, No Company Name, Poured, Obverse1 KILO[Diamond JM Logo with Crossed Hammers] [1 KILO] [Serial Number] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish1 KILO example in ‘D’ serial suffix, produced by Johnson Matthey, Canada.

12528 D
12806 D
12885 D
12993 D
13105 D
13187 D
13305 D
13581 D
13695 D
13909 D
14030 D

<100
unnamed-11 KILO[Diamond JM Logo with Crossed Hammers] [1 KILO] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish1 KILO example produced by Johnson Mathey, Canada.  This example demonstrates the smaller Diamond Hallmark and wider spacing on the ‘999+’ purity stamp.

Serial Absent

<10
JM_1Kilo_D0147371kg[Diamond JM Logo with Crossed Hammers] [1 Kg] [Serial Number Sideways on Right] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish1kg example produced by Johnson Matthey, Canada. Similar to above example with exception of opposite serial number placement and ‘1 Kg’ vs. ‘1 KILO’ weight class designation

D014384
D014710
D014737
D014770
D015055
D015056
D015245
D015410
D015776
D016230
D016236
D016320

<250
s-l1600 11kg[JOHNSON MATTHEY] [Diamond JM Logo with Crossed Hammers] [1 Kg] [Serial Number Sideways on Right] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish1kg example produced by Johnson Matthey, Canada.  This example demonstrates a very rare weight class stamp for this variety.

D016198
D016368

<25
1 KILO JM LATER1kg[JOHNSON MATTHEY] [Diamond JM Logo with Crossed Hammers] [Serial Number Sideways on Left] [1 Kg] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish1kg example produced by Johnson Matthey, Canada.  This example is similar to our above example, though has the serial number on the opposite side.

D016793

<50
JM_1Kilo_D0217981 KILO[JOHNSON MATTHEY] [Diamond JM Logo with Crossed Hammers] [Serial Number Sideways on Left] [1 KILO] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish1 KILO example produced by Johnson Matthey, Canada.D018291 D019103 D021798<5,000
unnamed-11 KILO[JOHNSON MATTHEY & MALLORY Oval Logo] [CANADA Inner Oval] [1 KILO] [9990] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish1 KILO example producedby Johnson Matthey & Mallory, Canada.Serial Absent<250
Screen Shot 2018-05-31 at 11.45.25 AM1 KILO[JOHNSON MATTHEY & MALLORY Oval Logo] [CANADA Inner Oval] [JM Maple Leaf Logo] [1 KILO] [9990] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish1 KILO example produced by Johnson Matthey & Mallory, Canada.  Similar to our above example, but includes the Maple Leaf logo, occasionally observed in varying placement, as shown in the supplemental photo.  The varying placement of these stampings resulted from the refinery employee applying the the stamp to the most appropriate location, based on differences in obverse finish.  Our mintage estimate is representative of both variations on this example.

Serial Absent<25
unnamed-11 KILO[JOHNSON MATTHEY & MALLORY Oval Logo] [CANADA Inner Oval] [JM Maple Leaf Logo] [1 KILO] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish1 KILO example produced by Johnson Matthey & Mallory, Canada.  Similar to our above example, though demonstrates a different purity stamp.Serial Absent<250
image1 KILO[JOHNSON MATTHEY & MALLORY Oval Logo] [CANADA Inner Oval] [1 KILO] [999] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish1 KILO example produced by Johnson Matthey & Mallory, Canada.  We have confirmed that Kyle Anastasiou of Ontario, Canada fraudulently applied the ‘0007’ serial number to the only known example in an attempt to defraud the market.  Kyle claims that, after a lot of pestering, he finally managed to acquire another employee bar from his ‘inlaws ex JM employee friend of family’. 
image		Serial Absent<10
unnamed1 KILO[JOHNSON MATTHEY & MALLORY Oval Logo] [CANADA Inner Oval] [1 KILO] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish1 KILO example produced by Johnson Matthey & Mallory, Canada.  Similar to our above example but includes a ‘+’ on purity stamp.  We have confirmed that Kyle Anastasiou of Ontario, Canada fraudulently applied the ‘0007’ serial number to the example below in an attempt to defraud the market.  Kyle claims that, after a lot of pestering, he finally managed to acquire another employee bar from his ‘inlaws ex JM employee friend of family’. 
Screen-Shot-2018-05-22-at-6.13.52-AM		Serial
Absent		<100
unnamed1 KILO[JOHNSON MATTHEY & MALLORY Oval Logo] [CANADA Inner Oval] [1 KILO] [999+] [JM Maple Leaf Logo] Cast Finish1 KILO example produced by Johnson Matthey & Mallory, Canada.Serial Absent<25
JM KILO LARGE HALLMARK1 KILO[JOHNSON MATTHEY LONDON Large Logo] [REFINERS MELTERS Inner Oval] [999] [1 KILO] [SILVER]Cast Finish1 KILO example produced by Johnson Matthey, London. Ingot demonstrates the earlier, larger hallmark.Serial Absent<100
1 KILO JM LONDON J100621 KILO[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [1 KILO] [Serial Number]Cast Finish1 KILO example produced by Johnson Matthey, London. Ingot demonstrates the modern, smaller hallmark.J 10062
J 10034		<50
unnamed1 KILO[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [1 KILO]Cast Finish1 KILO example produced by Johnson Matthey, London. Ingot demonstrates the modern, smaller hallmark.  Similar to our above example but lacks a serial number.Serial Absent<50
IMG_21391 KILO[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [1 KILO] [SILVER] [Serial Number]Cast Finish1 KILO example produced by Johnson Matthey, London, in large JM serial prefix font.  Believed to be the earliest production variety of the JM serial prefix kilo ingots.  Note the unique  shape of the casting mould and crater-like finish compared to the more common JM prefix kilo ingots presented below.
IMG_2132IMG_2134IMG_2135
JM 68882 A<100
Screen Shot 2017-11-19 at 9.42.41 PM1 KILO[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [1 KILO] [SILVER] [Serial Number]Cast Finish1 KILO example produced by Johnson Matthey, London.  Similar to our more commonly produced example below, but of a unique casting mould and four digit serial number assignment.  Casting mould variances may be observed in the below photos.
unnamedunnamed-1		JM 2768 A<50
1 KILO JM LONDON EARLY1 KILO[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [1 KILO] [SILVER] [Serial Number]Cast Finish1 KILO example produced by Johnson Matthey, London.
JM 10919 A
JM 46311A
JM 65200 A
JM 78971 A		<2,000
1 KILO JM London Sharpd Pixley1 KILOJOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [1 KILO] [SILVER] [SHARPS PIXLEY LONDON Circular Counterstamp] [Serial Number]Cast Finish1 KILO example produced by Johnson Matthey, London, for bullion broker Sharps Pixley.JM 63504 A
JM 63505 A
JM 66201 A
JM 66205 A
JM 66237 A		<250
image0011 KILOJOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [1 KILO] [SILVER] [SHARPS PIXLEY LONDON Circular Counterstamp] [Serial Number]Cast Finish1 KILO example produced by Johnson Matthey, London, for bullion broker Sharps Pixley.  This ingot demonstrates the larger ‘JM’ serial prefix font.JM 68595A<100
JM KILO SHARPS PIXLEY1 KILO[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [1 KILO] [SILVER] [SP Sharps Pixley Counterstamp] [Serial Number]Cast Finish1 KILO example produced by Johnson Matthey, London, for bullion broker Sharps Pixley.  This ingot demonstrates the more modern Sharps Pixley counterstamp.JM 81171 A<100
JM 1 KILO Rood1 KILO[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [1 KILO] [SILVER] [ROOD Logo] [Serial Number]Cast Finish1 KILO example produced by Johnson Matthey, London, for ROOD.  This ingot demonstrates the larger ‘JM’ serial prefix font.JM 67840 A<100
unnamed1 KILO[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [1 KILO] [SILVER] [LEU BANK ZURICH Counterstamp] [Serial Number]Cast Finish1 KILO example produced by Johnson Matthey, London. More modern JM hallmark and also includes LEU Bank Zurich counterstamp.JM77074<100
s-l5001 KILO[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [1 KILO] [SILVER] [Multiple London Hallmarks] [Serial Number]Cast Finish1 KILO example produced by Johnson Matthey, London.  Produced in honor of the 1977 Jubilee Year.JM 77569 A<25
32.08oz JM London32.08oz[JOHNSON MATTHEY & CO. LTD. LONDON Oval Logo] [9990 Inner Oval] [SILVER] [Serial Number]Blank32.08oz example produced by Johnson Matthey, London.  This example demonstrated the older Johnson Matthey & Co. Ltd. London oval hallmark and a polished surface finish.JM 10991 A
JM 13632 A
JM 13633 A
JM 13637 A
JM 13640 A
JM 22556 A

<500
image132.31oz[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [SILVER] [Serial Number]Blank32.31oz example produced by Johnson Matthey, London.  This example measures 122mm x 18mm x 42mm and demonstrates the more modern JM London hallmark.  It also has a polished surface finish and recent serial number range assignment.JM 64720 A<250
IMG_593932.25oz[JOHNSON MATTHEY LONDON Oval Logo] [9990 Inner Oval] [SILVER] [ROOD Logo] [Serial Number]Blank32.25oz class example produced by Johnson Matthey, London, for ROOD.  Similar to our two examples, directly above.JM 2072 A<50
1 KILO JM London1 KILO[JOHNSON MATTHEY LONDON Oval Logo] [REFINERS MELTERS Inner Oval] [999] [1 KILO] [SILVER] [Serial Number]Cast Finish1 KILO example produced by Johnson Matthey, London. These examples have serial numbers which include a JM [Johnson Matthey] prefix and include a letter suffix designation.  Note the more modern JM London Hallmark.JM 66436 A
JM 68598 A
JM 73079 A
JM 73137 A
JM 74076 A
JM 74200 A		<500
JM_1Kilo_NoSerial_London1 KILO[JOHNSON MATTHEY LONDON Oval Logo] [REFINERS MELTERS Inner Oval] [999] [1 KILO] [SILVER]Cast Finish1 KILO example produced by Johnson Matthey, London. Serial absent variation of our above example.Serial
Absent		<100
1_KILO_Extruded1 KILO[JOHNSON MATTHEY LONDON with JM Crossed Hammers Logo] [1 KILO] [SILVER BULLION] [999] [Serial Number]Blank1 KILO pressed example produced by Johnson Matthey, London.KG11096
KG11727
KG12059		<500
FullSizeRender1 KILO[JOHNSON MATTHEY & PAUWELS Oval Logo] [999] [1000]Cast FinishEarly variety approximate 1000g example produced by Johnson Matthey & Pauwels, Brussels.Serial Absent<100
Screen Shot 2018-02-20 at 11.00.21 AM
1000g[JOHNSON MATTHEY & PAUWELS Oval Logo] [BRUXELLES BRUSSEL Inner Oval] [999] [1000.]Cast Finish1000g example produced by Johnson Matthey & Pauwels, Brussels. Also found in other approximate weight class variations such as 999g and 1002g.
Serial
Absent		<250
Screen Shot 2017-03-20 at 2.05.56 PM1 KILO[JOHNSON MATTHEY & PAUWELS Oval Logo] [BRUXELLES BRUSSEL Inner Oval] [999] [1977] [1000]Cast FinishApproximate 1000g example produced by Johnson Matthey & Pauwels, Brussels in landscape variation.1977<100
unnamed-11kg[JOHNSON MATTHEY Oval Logo] [1 KG] [999+SILVER]Cast Finish1kg example produced by Johnson Matthey, Australia.Serial Absent<1,000
unnamed1kg[JOHNSON MATTHEY Oval Logo] [1.KG] [999+SILVER]Cast Finish1kg example produced by Johnson Matthey, Australia.  Similar to our above example but includes a ‘.’ between ‘1’ and ‘KG’.Serial Absent<100
IMG_5283.JPG
IMG_5284.JPG		1kg[Custom ‘elecraft’ Logo] [1 KG] [999+SILVER][JOHNSON MATTHEY Oval Logo]Exceedingly rare 1kg example produced by Johnson Matthey, Australia for Elecraft company.  Elecraft is currently one of Australia’s largest electrical contractors.  One known example.Serial Absent<50
JM AUSTRALIA 1.004 kg1•004kg[FINE SILVER 99•9% MIN.] [JOHNSON MATTHEY LTD AUSTRALIA REFINERS Oval Logo] [1.004 Kg]Cast Finish1.004kg example produced by Johnson Matthey Ltd., Australia. Seen in approximate 1kg weight class.Serial Absent<250
IMG_5705IMG_57010•999kg[FINE SILVER 99•9% MIN.] [TUBEMAKERS SILVER BAR] [JOHNSON MATTHEY LTD AUSTRALIA REFINERS Oval Logo] [0.999 Kg]Cast Finish0.999kg example produced by Johnson Matthey Ltd., Australia with Tubemakers of Australia, Ltd. counterstamp.  Seen in approximate 1kg weight class.  Additional information regarding the Tubemakers of Australia, Ltd. counterstamp may be found at this LINK.Serial Absent<10
1.003Kg Matthey Garrett1.003kg
[FINE SILVER 99•9% MIN.] [MATTHEY GARRETT Oval Logo] [1.003 Kg]Cast Finish1.003kg example produced by Matthey Garrett, Australia. Seen in approximate 1kg weight class.Serial Absent<1,000
1.008 Kg JM1.008kg[FINE SILVER 99•9% MIN.] [JOHNSON MATTHEY Oval Logo] [1.008 Kg]Cast Finish1.008kg example produced by Johnson Matthey, Australia. Seen in approximate 1kg weight class.Serial
Absent		<1,000
IMG_20591.005kg[FINE SILVER 99•9% MIN.] [MATTHEY GARRETT Oval Logo] [1.005]‹‹Cast Finish1.005kg example produced by Matthey Garrett, Australia. Seen in approximate 1kg weight class, this particular variety does not demonstrate the ‘kg’ weight designation suffix.Serial Absent<1,000
1.005kg_JM1.005kg[FINE SILVER 99•9% MIN.] [MATTHEY GARRETT Oval Logo] [1•005 kg]Cast Finish1.005kg example produced by Matthey Garrett, Australia. Seen in approximate 1kg weight class.Serial Absent<1,000
1.004 KG JM1.004kg[FINE SILVER 99•9% MIN.] [MATTHEY GARRETT Oval Logo] [1•004 KG]Cast Finish1.004kg example produced by Matthey Garrett, Australia. Seen in approximate 1kg weight class.Serial Absent<500
image0071.009kg[FINE SILVER 99•9% MIN.] [MATTHEY GARRETT Oval Logo] [1.009 kg]Cast Finish1.003kg example produced by Matthey Garrett, Australia. Seen in approximate 1kg weight class.  Serial Absent<250
Matthey Garrett 1Kg SCCC <!--mep-tab--> 11.003kg[FINE SILVER 99•9% MIN.] [MATTHEY GARRETT Oval Logo] [SCCA Counterstamp] [1.003 kg]Cast Finish1.003kg example produced by Matthey Garrett, Australia. Seen in approximate 1kg weight class.  Similar to our example above, this example demonstrates the SCCC [Southern Cross Coins & Commodities ] counterstamp.  At least one known example, pictured below, demonstrates an inverted SCCC stamp.
image002
Serial Absent<200
unnamed2-x-1kg-mg-rare-silver-bars-3.996KG

1.002KG
[MG Oval] [•996KG] [999] [Serial Number]

[Serial Number] [MG Oval] [•999] [1•002KG]
Cast FinishApproximate 1kg example produced by Matthey Garrett, Australia. Seen in several variations of stamp placement and some examples lack a serial number.85
124		<200
2-x-1kg-mg-rare-silver-bars-41.002Kg[MG Oval] [•999] [1•002Kg]Cast Finish1.002kg example produced by Matthey Garrett, Australia. Seen in approximate 1kg weight class.  This example varies slightly from the one above due to smaller MG hallmark, purity stamp font, Kg vs. KG weight designation and lack of serial number.Serial Absent+++<200
20170529_1621081.002Kg[W&M Flag Logo] [MG Oval] [1•002Kg] [Serial Number] [•999] Cast Finish1.002kg example produced by Matthey Garrett, Australia. Seen in approximate 1kg weight class and similar to our example above but includes a serial number and the the W&H flag logo. The flag represents Walker & Hall of Sheffield, England, pictured below. 
44-09
810<50
Screen Shot 2017-08-25 at 2.05.37 PM1.001Kg[W&M Flag Logo] [MG Oval] [1•002Kg] [Serial Number] [•999] Cast Finish1.001kg example produced by Matthey Garrett, Australia. Seen in approximate 1kg weight class and similar to our example above but includes a larger variation of the W&H flag logo. The flag represents Walker & Hall of Sheffield, England, pictured below.  Our thanks to Josh M. for the discovery of this variation!
44-09		783
1083		<25
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