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.
| IMAGE | WEIGHT CLASS | OBVERSE | REVERSE | COMMENTARY | SAMPLE SERIAL NUMBERS | ESTIMATED MINTAGE |
 | 5g | [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 |
 | 5g | [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 |
 | 5g | [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 |
 | 5g | [CRAGSIDE] [R] [SRM Diamond Logo] [5g.] [999] [FINE SILVER] | Pressed Finish | 5 gram pendant produced by S.R. Mitchell Company. | N/A | <50 |
 | 5g | [SRM Diamond Logo] [5g] [FINE SILVER] [999] | Pressed Finish | 5 gram pendant produced by S.R. Mitchell Company. | N/A | <50 |
 | 5g | [CRAGSIDE] [R] [SRM Diamond Logo] [5g.] [375] [GOLD] | Pressed Finish | 5 gram gold pendant produced by S.R. Mitchell Company. | N/A | <50 |
 | 1/4oz | {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 |
 | 7.8g | [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 |
 | 77g | [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 |
 | 500g | [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 Finish | 1st series 500g ingot produced by S.R. Mitchell Company. | 1872 1874 | <100 |
 | 500g | [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 Finish | 2nd series 500g ingot produced by S.R. Mitchell Company. | A1006 | <100 |
 | 500g | [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 Finish | 2nd 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 |
 | 500g | [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 Finish | 2nd 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. | 2549 | <50 |
 | 500g | [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 Finish | 2nd 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 |
   | 500g | [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 Finish | 2nd 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 |
 | 500g | [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 Finish | 3rd 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 |
 | 1 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 Finish | 1st series 1 KILO class ingot produced by S.R. Mitchell Company, earliest known variety. | 2017 4204 | <250 |
  | 1 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 Finish | 2nd 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 |
 | 1 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 Finish | 2nd 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 |
 | 1 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 Finish | 2nd 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 |
 | 1 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 |
  | 1 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.  | 8025 | <5 |
  | 1 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 Finish | 3rd 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. | 8407 8497 9031 9160 9219 9230 9362 9436 | <1000 |
 | 1 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 |
 | 1 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 Finish | 3rd series 1 KILO class ingot produced by S.R. Mitchell Company. This ingot demonstrates the M&L counterstamp on the obverse. | 0169 | <50 |
 | [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 Finish | 3rd 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 | |
 | 1 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 Finish | 4th 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 |
 | 1 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 Finish | 4th 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 |
  | 1 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 |
 | 1.5 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 Finish | 1.5 KILO class ingot produced by S.R. Mitchell Company. | 1039 | <50 |
  | 1.5 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 Finish | 1.5 KILO example produced with ‘The Winning Way’ counterstamp. Originally issued in presentation case, pictured below. | A6062 A6071 A6087 | <50 |
 | 5KG | [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 Finish | 5 KILO class ingot produced by S.R. Mitchell Company. | A8134 | <100 |
 | 5KG | [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 Finish | 5 KILO class ingot produced by S.R. Mitchell Company. This ingot demonstrates the Australia Bullion Company PTY LTD counterstamp on the obverse. | 7829 | <25 |