X

AG | 5oz


ALL
ENGELHARD
is pleased to welcome visitors to our Johnson Matthey 5oz 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
jm-5-oz-15oz[Diamond JM Logo with Crossed Hammers] [5 OZ.] [999]Cast FinishExceedingly rare 5oz example produced by Johnson Matthey, United States.  Note the lack of [+] on purity designation.Serial Absent<25
image3 copy5oz[Diamond JM Logo with Crossed Hammers] [5 OZ.]Cast FinishExceedingly rare 5oz example produced by Johnson Matthey, United States.  Similar to our above example, though lacks the purity stamping.  Our appreciation to Dan S. for this discovery!Serial Absent<5
5oz JM5oz[Diamond JM Logo with Crossed Hammers] [5 OZ.] [999+]Cast Finish5oz example produced by Johnson Matthey, United States.
Serial Absent<1000
unnamed5oz[Diamond JM Logo with Crossed Hammers] [5 OZ.] [999+]Cast Finish5oz example produced by Johnson Matthey, United States.  Smaller hallmark that our example above.Serial Absent<1000
JM rare bar5oz[Diamond JM Logo with Crossed Hammers] [5 OZ.] [999+]Cast Finish5oz example produced by Johnson Matthey, United States.  Similar to our above example, though this ingot demonstrates an taller ‘oz’ weight class font.Serial Absent<50
Image5oz[Diamond JM Logo with Crossed Hammers] [5 OZ.] [999+]Cast Finish5oz example produced by Johnson Matthey, United States.  This ingot is notably more wide and flat than other 5oz ingots in this weight class.Serial Absent<100
IMG_09685oz[Diamond JM Logo with Crossed Hammers] [5 OZ.] [999+]Cast Finish5oz example produced by Johnson Matthey, United States.  This ingot is thicker and demonstrates a smaller obverse surface area than the example above, as shown in the photos below.
IMG_0964 54334269572__7C6E05F8-B04F-48F1-BF6A-4042F5433235
Serial Absent<50
image5oz[J M & M LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval] [5 oz.] [999]
Cast Finish
5oz example produced by Johnson Matthey & Mallory, Canada.Serial Absent<50
SONY DSC5oz[JOHNSON MATTHEY & MALLORY Oval Logo] [CANADA Inner Oval] [5 oz.] [999+]
Cast Finish5oz example produced by Johnson Matthey & Mallory, Canada.Serial Absent<25
5oz JM Mallory Large Hallmark[JOHNSON MATTHEY & MALLORY Oval Logo] [CANADA Inner Oval] [999+] [5 oz.]
Cast Finish5oz example produced by Johnson Matthey & Mallory, Canada. Similar to our example above though with variation of weight and purity placement.Serial Absent<25
JMM 5oz Maple5oz[JOHNSON MATTHEY & MALLORY Oval Logo] [CANADA Inner Oval] [Maple Leaf Logo] [999+] [5 oz.]Cast Finish5oz example produced by Johnson Matthey & Mallory, Canada. Similar to our examples above though with further variation of weight and purity placement.  Example also demonstrates  Maple Leaf Logo.
Serial Absent<25
image5oz[JMC Rectangular Logo] [Maple Leaf Logo] [999+] [5OZ]Cast Finish5oz 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<2000
Screen Shot 2017-05-02 at 8.58.26 AM5oz[JMC Rectangular Logo] [Maple Leaf Logo] [5OZ] [999+] Cast Finish5oz example produced by Johnson Matthey, Canada.  Same as our above example, but has reverse placement of weight and purity stampings, as well as a double strike on the weight stamp.  Believed to be an error bar perhaps produced by a novice employee.Serial Absent<50

image
5oz[JMC Rectangular Logo] [999+] [5OZ]Cast Finish5oz example produced by Johnson Matthey, Canada. This example lacks the Maple Leaf stamping and is a 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<250
5oz NO MAPLE 2
unnamed
5oz[JMC Rectangular Logo] [999+] [5OZ]Cast Finish5oz example produced by Johnson Matthey, Canada. This ingot is an error variation of our example above, note the 7/5 over-stamp on weight class designation.Serial Absent<25
JM ALEXANDER'S $100 GIFT INGOT 5 OZ 0021 JM ALEXANDER'S $100 GIFT INGOT 5 OZ 00315oz[Custom Image of Woman and Building] [Alexander’s][$100] [ALEXANDER’S] [$100] [FINE SILVER] [5 OZ.TR.] [JM Crossed Hammers Logo] [MERCHANDISE CONVERTIBLE] [GIFT INGOT] [.999 FINE] [Serial Number]5oz example produced by Johnson Matthey for Alexander’s.800167<100
JM 5oz 0001525oz[JM Crossed Hammers Logo] [ASSAYERS & REFINERS] [FINE SILVER 999] [5 OUNCES TROY] [Serial Number]Blank
5oz example produced by Johnson Matthey, United States.000152
022694
033192
<15,000
Screen Shot 2018-02-26 at 11.47.53 AM5oz[JM Crossed Hammers Logo] [ASSAYERS & REFINERS] [FINE SILVER 999] [5 OUNCES TROY] [Serial Number][KIDD Custom Logo] [Kidd Creek Mines Ltd.] [ZINC PLANT] [1,000,000 ACCIDENTS FREE HOURS WORKED] [MAY 29, 1982]5oz example produced by Johnson Matthey, United States, for Kidd Creek Mines of Timmins, Ontario Canada.  Kidd Creek Mines is the world’s deepest base-metal mine below sea level.000223<100
5oz JM 25oz[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [5 OUNCES TROY] [Serial Number][JM Crossed Hammers Logo Repeated Seven Full Times]5oz example produced by Johnson Matthey, United States.043160
056543
060301
062085
074966
<50,000
Screen Shot 2018-12-12 at 2.46.53 PM5oz[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [5 OUNCES TROY] [Serial Number][JM Crossed Hammers Logo Repeated Three Full Times]5oz example produced by Johnson Matthey, United States.074213<1,000
5oz JM Speedy Print5oz[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [5 OUNCES TROY] [Serial Number][SpeedyPrint 1962•1987 25th Anniversary Circular Logo] [Fine Silver 999] [5 OUNCES TROY]5oz example produced by Johnson Matthey, United States, for Speedy Print.001000
001023
<1,000
5oz JM Escalante 19825oz[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [5 OUNCES TROY] [Serial Number][RANCHERS EXPLORATION Custom Logo] [ESCALANTE MINE] [1982]5oz example produced in 1982 by Johnson Matthey, United States, for Ranchers Exploration and Development Corporation of Albequerque, New Mexico.003337
003765
004065
<1,000
5oz JM Escalante No Date5oz[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [5 OUNCES TROY] [Serial Number][RANCHERS EXPLORATION Custom Logo] [ESCALANTE MINE]
5oz example produced in 1990 by Johnson Matthey, United States, for Ranchers Exploration and Development Corporation of Albequerque, New Mexico. This example does not include the ‘1982’ date as our example above.004587
004763
<500
JM 5oz TD Bank Early5oz[JM Crossed Hammers Logo] [ASSAYERS & REFINERS] [FINE SILVER 999] [5 OUNCES TROY] [Serial Number][TD BANK Logo Repeated Six Full Times]5oz example produced by Johnson Matthey, United States, for TD Bank.000062<500
5oz JM TD Bank5oz[JM Crossed Hammers Logo] [JOHNSON MATTHEY] [ASSAYERS & REFINERS] [FINE SILVER 999] [5 OUNCES TROY] [Serial Number][TD BANK Logo Repeated Six Full Times]5oz example produced by Johnson Matthey, United States, for TD Bank.
006577<1,000
5oz JM Scotiabank5oz[Scotiabank Company Logo] [Scotiabank] [FINE SILVER 999 in Rectangle] [5 OUNCES TROY][Serial Number] [JM Crossed Hammers Logo]5oz example produced by Johnson Matthey, United States, for Scotiabank.003536
004995
<500
5oz JM NY BANK5oz[Circular Logo FIVE OUNCES TROY FINE SILVER Circular Logo with Republic National Bank of New York Inner Logo] [REPUBLIC NATIONAL BANK OF NEW YORK][Serial Number] [RNB Custom Logo Repeated Eight Full Times] [JM Crossed Hammers Logo] [ASSAYERS REFINERS]5oz example produced in 1985 by Johnson Matthey, United States, for Republic National Bank of New York.
004940<5,000