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S. R. MITCHELL & CO. PTY LTD


ALL
 ENGELHARD
 
is pleased to welcome visitors to our S. R. Mitchell & Company Definitive Page. While our focus is clearly Engelhard, we recognize that many Engelhard bullion collectors also collect other bars and ingots. As such, we appreciate the opportunity to present important bullion information and look forward to your thoughts and input!  

Stanley Robert Mitchell [1881-1963],mineralogist, metallurgist and businessman, established himself as a gold assayer in 1911.  He founded S. R. Mitchell & Co. Pty Ltd in the mid-1920’s and operated as a major refiner of precious metals.  The majority of ingots defined on this page are believed to have ben produced from 1970 through the early 1980’s.  


IMAGEWEIGHT
CLASS
OBVERSEREVERSECOMMENTARYSAMPLE
SERIAL
NUMBERS
ESTIMATED
MINTAGE
Screen Shot 2021-08-16 at 6.54.25 PM5g[CRAGSIDE] [R] [SRM Diamond Logo] [5g.] [999] [FINE SILVER]
[Image of Goat Zodiac Symbol] CAPRICORN]
5 gram pendant produced by S.R. Mitchell Company.  N/A<25
Screen Shot 2021-09-29 at 11.15.17 AM5g[CRAIGSIDE] [R] [SRM Diamond Logo] [5g.] [9998] [FINE SILVER]
[Image of Goat Zodiac Symbol] CAPRICORN]
5 gram pendant produced by S.R. Mitchell Company.  Similar to our example above, though demonstrates a ‘9998’ purity stamp.N/A<10
Screen Shot 2020-12-05 at 11.20.52 AM5g[Celebrity] [SRM Diamond Logo] [5g] [999] [FINE SILVER] 
[Image of Goat Zodiac Symbol] [CAPRICORN]
5 gram pendant produced by S.R. Mitchell Company.  N/A<25
Screen Shot 2020-11-30 at 5.49.56 PM5g[CRAGSIDE] [R] [SRM Diamond Logo] [5g.] [999] [FINE SILVER]
Pressed Finish
5 gram pendant produced by S.R. Mitchell Company.  N/A<50
image4-35g[SRM Diamond Logo] [5g] [FINE SILVER] [999] 
Pressed Finish
5 gram pendant produced by S.R. Mitchell Company.  N/A<50
Screen Shot 2023-05-30 at 12.35.13 PM5g[CRAGSIDE] [R] [SRM Diamond Logo] [5g.] [375] [GOLD]
Pressed Finish
5 gram gold pendant produced by S.R. Mitchell Company. N/A<50
Screen Shot 2022-03-14 at 12.34.27 PM1/4oz{Image of Crown] [SRM Diamond Logo} [999 FINE SILVER] [1/4oz]
[Image of Bow Hunter]
1/4oz pendant produced by S.R. Mitchell Company.  N/A<50
Screen-Shot-2017-06-26-at-4.41.28-PM7.8g[Image of two Individuals]
[CRAGSIDE][R] [SRM Diamond Logo] [7•8 GMS.] [999] [FINE SILVER]
7.8 gram pendant produced by S.R. Mitchell Company.  S.R. Mitchell reportedly produced a series of .999 fine silver pendants with a zodiac theme for a company called Cragside throughout the 1980’s.  These ingots ranged in size from 2.5 grams to 7.8 grams, equivalent to 1/4oz.N/A<250
Screen Shot 2019-12-03 at 1.34.57 PM77g[S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911]
Cast Finish
77g ingot produced by S.R. Mitchell Company.N/A<5
20240523_084336300g[9998] [SILVER] [Serial Number] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [Weight Class]
Cast Finish
301.2g approximate 10oz weight class ingot produced by S.R. Mitchell Company.0020<50
image009500g[9998] [SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [Serial Number] [Weight Class]Cast Finish1st series 500g ingot produced by S.R. Mitchell Company.1872
1874
<100
IMG_0202500g[9998] [SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [Serial Number] [Weight Class]Cast Finish2nd series 500g ingot produced by S.R. Mitchell Company.A1006<100
image022500g[9998] [SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [Carlisle Burbank Commodities Counterstamp] [Serial Number] [Weight Class]Cast Finish2nd series 500g ingot produced by S.R. Mitchell Company.  This ingot demonstrates a larger purity font and hallmark stamp.  It also includes the Carlisle Burbank Commodities counterstamp.5871<100
unnamed500g[9998] [SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [SCCC Counterstamp] [Serial Number] [Weight Class]Cast Finish2nd series 500g ingot produced by S.R. Mitchell Company.  Similar to our example above but includes the Southern Cross Coins & Commodities counterstamp and is of a unique, thinner casting mould as pictured below.  Additional information regarding the ‘SCCC’ Southern Cross Coins and Commodities counterstamp may be found at this LINK.

10
2549<50
SRM 0.4991kg serial 5191 SCCC stamp 1500g[9998] [SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [SCCC Counterstamp] [Serial Number] [Weight Class]Cast Finish2nd series 500g ingot produced by S.R. Mitchell Company.  Additional information regarding the ‘SCCC’ Southern Cross Coins and Commodities counterstamp may be found at this LINK.2549
5191
<100
10Screen Shot 2019-08-20 at 7.34.39 AM 500gr srm-2500g[9998] [SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [QLD Silver Reclamation Counterstamp] [Serial Number] [Weight Class]Cast Finish2nd series 1 KILO class ingot produced by S.R. Mitchell Company.  This ingot demonstrates the Queensland Silver Reclamation counterstamp on the obverse and a note of 12/20/1981 on the reverse which we believe indicates approximate production date.A1048
A1070
<50
SRM 0.5 kg Serial 7692 1500g[9998] [SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [Serial Number] [Weight Class]Cast Finish3rd series 500g ingot produced by S.R. Mitchell Company.  Similar to the above example, ingot demonstrates weight font and casting mould size variation.7692<200
unnamed-21 KILO[Serial Number] [99•98] [Weight Class] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911]Cast Finish1st series 1 KILO class ingot produced by S.R. Mitchell Company, earliest known variety.2017
4204
<250
UnknownSRM A2511 1.0032kg 11 KILO[9998] [SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [Serial Number] [Weight Class]Cast Finish2nd series 1 KILO class ingot produced by S.R. Mitchell Company.  Occasionally observed in letter prefix serial variation  also pictured.2108
2338
A2511
2931
3055
4412
4579
4586
5089
5874
<2,000
Screen Shot 2017-03-14 at 8.53.03 AM1 KILO[9998] [SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [SCCC Counterstamp] [Serial Number] [Weight Class]Cast Finish2nd series 1 KILO class ingot produced by S.R. Mitchell Company.  This ingot demonstrates the SCCA counterstamp on the obverse.  Additional information regarding the SCCC Southern Cross Coins and Commodities counterstamp may be found at this LINK.1141
1238
2489
2668
2758
3987
4557
4560
5547

<2,500
Screen Shot 2020-05-15 at 1.20.17 PM1 KILO[9998] [SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [QLD Silver Reclamation Counterstamp] [Serial Number] [Weight Class]Cast Finish2nd series 1 KILO class ingot produced by S.R. Mitchell Company.  This ingot demonstrates the Queensland Silver Reclamation counterstamp on the obverse.A2273
A2846
A2868
<250
Screenshot 2024-06-07 at 8.26.00 AM1 KILO[Serial Number] [99.98] [Weight Class][S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [Circular B.I.S. Counterstamp] [BULLION INVESTMENT SERVICES] [BIS Inner Circle]3rd series 1 KILO class ingot produced by S.R. Mitchell Company.  This ingot demonstrates both the S.R. MITCHELL Diamond Hallmark and circular Bullion Investment Services counterstamp on the reverse.1174
1175

<25
Screen Shot 2022-03-14 at 12.46.14 PM1 KILO[SILVER] [99.98] [Serial Number] [Weight Class] [Circular ABC Counterstamp] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911]3rd series 1 KILO class ingot produced by S.R. Mitchell Company.  This ingot demonstrates both the Australia Bullion Company PTY LTD counterstamp and S.R. MITCHELL Diamond Hallmark on the reverse. 8072<5
IMG_4989IMG_49901 KILO[SILVER] [99•98] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [Circular ABC Counterstamp] [Serial Number] [Weight Class][Circular ABC Counterstamp] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911]3rd series 1 KILO class ingot produced by S.R. Mitchell Company.  This ingot demonstrates both the Australia Bullion Company PTY LTD counterstamp and S.R. MITCHELL Diamond Hallmark on the obverse, as well as on the reverse.  Originally issued in collector box and assay certificate, pictured below, which have been retained and well preserved.  This is believed to be the only known example that includes the reverse stampings, likely because the Australia Bullion Company counterstamp was not entirely visible on the obverse due to the attractive pour lines.
IMG_4988Screen Shot 2018-03-16 at 7.30.54 AM
8025<5
20151028_185110 copySRM_ABC 1.0047kg May 19771 KILO[9998] [SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [Circular ABC Counterstamp] [Serial Number] [Weight Class]Cast Finish3rd series 1 KILO class ingot produced by S.R. Mitchell Company.  This ingot demonstrates the Australia Bullion Company PTY LTD counterstamp on the obverse.  Slight variation in comparison to our above example, in that the placement of purity and ‘SILVER’ are reverse.  Original invoice for ingot 9230 is pictured below.
SRM_ABC 1.0047kg May 1977_Receipt
8407
8497
9031
9160
9219
9230
9362
9436
<1000
image0031 KILO[SILVER] [9998] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [Serial Number] [Weight Class][Circular ABC Counterstamp]3rd series 1 KILO class ingot produced by S.R. Mitchell Company.  This ingot demonstrates the Australia Bullion Company PTY LTD counterstamp on the reverse. 8134<25
01 KILO[9998] [SILVER] [M&L Counterstamp] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [Serial Number] [Weight Class]Cast Finish3rd series 1 KILO class ingot produced by S.R. Mitchell Company.  This ingot demonstrates the M&L counterstamp on the obverse.0169<50
Screen Shot 2020-05-15 at 1.22.02 PM[9998] [SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [Circular ABC Counterstamp] [Serial Number] [Weight Class]Cast Finish3rd series 1 KILO class ingot produced by S.R. Mitchell Company.  This ingot demonstrates the latest variety of Australia Bullion Company PTY LTD counterstamp on the obverse.  9466
9475
<100
Screen Shot 2017-03-14 at 8.53.18 AM1 KILO[9998] [SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [SCCC Counterstamp] [Serial Number] [Weight Class]Cast Finish4th series 1 KILO class ingot produced by S.R. Mitchell Company.  This ingot demonstrates the SCCA counterstamp on the obverse.  This 4th series differes from our above examples in that it was produced in an even 1 KILO weight class.  We believe this brief serial number run was backfilled from previously unassigned numbers.  Additional information regarding the SCCC Southern Cross Coins and Commodities counterstamp may be found at this LINK.0430
0431
<250
Screen Shot 2020-10-21 at 11.01.18 AM1 KILO[9998] [SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [SCCC Counterstamp] [Serial Number] [Weight Class]Cast Finish4th series 1 KILO class ingot producedy by S.R. Mitchell Company.  Similar to our example just above, this ingot demonstrates the SCCA counterstamp, though was produced in an odd weight class.  Additional information regarding the SCCC Southern Cross Coins and Commodities counterstamp may be found at this LINK.  Our appreciation to Craig F. for this discovery!0487<100
00-11 KILO[9998] [SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [Serial Number] [Weight Class][Circular Bullion Investment Services Counterstamp] 5th series 1 KILO class ingot produced by S.R. Mitchell Company.  1264<50
Screen Shot 2022-03-14 at 12.39.00 PM1.5 KILO[9998 SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [Serial Number] [Weight Class]Cast Finish1.5 KILO class ingot produced by S.R. Mitchell Company.  1039<50
unknownimage0211.5 KILO[The Winning Way] [9998 SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [Serial Number] [Weight Class]Cast Finish1.5 KILO example produced with ‘The Winning Way’ counterstamp.  Originally issued in presentation case, pictured below.
image020
A6062
A6071
A6087
<50
unnamed-15KG[9998] [SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [Serial Number] [Weight Class]Cast Finish5 KILO class ingot produced by S.R. Mitchell Company.A8134<100
image0285KG[9998] [SILVER] [S.R. MITCHELL Diamond Hallmark] [S.R. MITCHELL AUST|PTY.LTD. REFINERS AUSTRALIA S•R•M EST. 1911] [Circular ABC Counterstamp] [Serial Number] [Weight Class]Cast Finish5 KILO class ingot produced by S.R. Mitchell Company.  This ingot demonstrates the Australia Bullion Company PTY LTD counterstamp on the obverse.  7829<25