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AG | 50oz

 


IMAGEWEIGHT
CLASS
OBVERSEREVERSECOMMENTARYSAMPLE
SERIAL
NUMBERS
ESTIMATED
MINTAGE
Screen Shot 2017-04-17 at 9.46.25 AM50oz[Diamond JM Logo with Crossed Hammers] [50 OZ] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval] [999+]Cast Finish50oz example produced by Johnson Matthey, Canada.  Earliest known example with taller ’50’ weight class font and wide spacing between purity ‘9’ stampings.Serial Absent<250
image-250oz[Diamond JM Logo with Crossed Hammers] [50 OZ] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval] [999+]
Cast Finish50oz example produced by Johnson Matthey, Canada.  Early example with large weight class font. 
Serial Absent<500
unnamed-450oz[Diamond JM Logo with Crossed Hammers] [50 OZ] [Serial Number] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval] [999+] Cast Finish50oz example produced by Johnson Matthey, Canada.  Early example with large weight class font and serial number.  Note unique serial font and circular ‘overstrike’ impression left by die strike on ‘1’ of serial number – as opposed to typical square overstrikes on all other examples.1605<50
image150oz[Diamond JM Logo with Crossed Hammers] [Number 8 Below Diamond Logo] [50 OZ] [Serial Number] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval] [999+] Cast Finish50oz example produced by Johnson Matthey, Canada.  Similar to our example above but demonstrates the unique Number 8 stamp.1277<25
unnamed-150oz[Diamond JM Logo with Crossed Hammers] [50 OZ] [Serial Number] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval] [999+] Cast Finish50oz example produced by Johnson Matthey, Canada.  Early example with large weight class font and serial number.15514 C
15817 C
<250
Screen Shot 2015-10-20 at 8.30.50 AM50oz[Diamond JM Logo with Crossed Hammers] [50 OZ] [Serial Number] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish50oz example produced by Johnson Matthey, Canada.  Early example with large weight class font and serial number.  Similar to our example above but with traditional placement of purity and small oval hallmark.15411 X<250
Screen Shot 2017-05-01 at 10.13.15 AM50oz[Diamond JM Logo with Crossed Hammers] [Serial Number] [50 OZ] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish50oz example produced by Johnson Matthey, Canada.  Early example with large weight class font and serial number placement variation.  Note the circular ‘zero’ in ’50 OZ’ weight designation as compared to later series.001143
001278
001415
<500
image 250oz[Diamond JM Logo with Crossed Hammers] [Serial Number] [50 OZ] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish50oz example produced by Johnson Matthey, Canada.  Similar to our example above but the purity spacing is more narrow.  Note the round ‘zero’ in ’50 OZ’ weight designation as compared to later series.001640
001734
<500
image50oz[Diamond JM Logo with Crossed Hammers] [Serial Number] [50 OZ] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish50oz example produced by Johnson Matthey, Canada.  Same as above example, but there is less spacing between the purity ‘999’ numbers.  Note the more oval ‘zero’ in ’50 OZ’ weight designation as compared to earlier series.002559
002913
<500
50oz JM Small Weight50oz[Diamond JM Logo with Crossed Hammers] [50 OZ] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval] [999+]Cast Finish50oz example produced by Johnson Matthey, Canada.  Smaller weight class font.
Serial Absent<500
unnamed50oz[Diamond JM Logo with Crossed Hammers] [50+ OZ] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval] [999+]Cast Finish50oz example produced by Johnson Matthey, Canada.  Interesting 50 ‘+’ OZ weight class designation.Serial Absent<1,000
image-350oz[Diamond JM Logo with Crossed Hammers] [50+ OZ] [Serial Number] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval] [999+]Cast Finish50oz example produced by Johnson Matthey, Canada.  Interesting 50 ‘+’ OZ weight class designation.  This example carries a serial number.17704 C
17875 C
17884 C
<250
JM 50oz 8BALL50oz[Diamond JM Logo with Crossed Hammers] [Number 8 Directly Below Diamond Logo] [50+ OZ] [Serial Number Sideways on Left] [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish50oz example produced by Johnson Matthey, Canada.  Includes serial number and interesting 50 ‘+’ OZ weight class designation.  This example is similar to a 20oz weight class that also includes the Number 8 stamp.441<1,000
JM 50oz50oz[JOHNSON MATTHEY] [Diamond JM Logo with Crossed Hammers] [Serial Number Sideways on Left] [50 OZ]  [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish
50oz example produced by Johnson Matthey, Canada.  Bar C028750 was issued with Johnson Matthey assay certificate, dated 26 May 1982.C021866
C025278
C027540
C028750
C036144
C040130
C045169
C047850
<30,000
s-l16005ooz[JOHNSON MATTHEY] [Diamond JM Logo with Crossed Hammers] [Serial Number Sideways on Right] [50 OZ]  [999+] [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish50oz example produced by Johnson Matthey, Canada.  C020553<5,000
50oz JM TD BANK50oz[TD Bank Logo] [Serial Number Sideways on Right] [50 OZ] [999+]  [JM LTD. ASSAY OFFICE Oval Logo] [CANADA Inner Oval]Cast Finish50oz example produced by Johnson Matthey, Canada, for TD Bank. M001583<1,000
50oz JM London50oz[JOHNSON MATTHEY LONDON Oval Logo] [REFINERS MELTERS Inner Oval] [999] [50 OZS] [SILVER] [Serial Number]
Cast Finish50oz example produced by Johnson Matthey London.JM 70520 A
JM 70609 A
JM 70681 A
<500
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.  This bar is also listed on our 50oz Definitive Page, as it is technically an odd sized example.
Serial Absent<100