This page contains our current information on all known varieties of Kilo and 1/2 Kilo class Engelhard Legacy Ingots. Yes, all varieties displayed below are considered ‘uncommon’ or ‘rare’ and regarded as highly desirable and collectible ingots. The ½ Kilo class includes 500g, 0.5kg, 16.075oz and ½ Kilo weight class designations. The Kilo class includes 32.150oz, 1kg and 1 Kilo weight class designations.
ENGELHARD LONDON Kilos and 1/2 Kilos were produced in Portrait (tall) and Landscape (horizontal) varieties with numerous alphabetic prefixes throughout the production span, which we believe to be from 1960 to 1973. Based on our extensive serial number registry, we estimate that approximately 15,000 silver Engelhard London Kilo and 1/2 Kilo ingots were produced over 14 years, averaging just over 1,000 pieces per year. As these were the ‘most trusted bullion’ ingot available at the time, most were melted for other fabrication like jewelry, photography, medical equipment, etc. Over 16 years, we have logged only approximately 4.00% of the 15,000+/- Engelhard London Kilo and 1/2 Kilo ingots produced, suggesting (based on similar ingot studies for same era and mintages) that perhaps less than 20% of Engelhard London Kilos have survived repurposing and the great melts. Below we have outlined Engelhard’s London Kilo and 1/2 Kilo production, in order of alphabetic prefix. Engelhard used a single serial number run encompassing all prefixes, with many sizable gaps that were likely reserved for Engelhard London gold ingots, but many of these serial voids were never filled.
The Engelhard London hallmark ingots shown in Kilo and 1/2 Kilo weight class are highly coveted Legacy ingots and of the earliest Engelhard variety. They are all in high demand and at the top of the collectibility and rarity list.
Additional information on these varieties can be found within our ORIGINAL PUBLICATIONS archives. We hope you enjoy your visit!
| EXAMPLE | WEIGHT CLASS | HALLMARK | OBVERSE | REVERSE | COMMENTARY | SAMPLE SERIAL NUMBERS | ICR | ESTIMATED |
  | 500g | Unique Hallmark | [‘E’ Hallmark in Elongated Octagon] [999] [Australian Hallmark in Elongated Octagon] [500•0G] | Cast Finish | 1st series ingot in 500g weight designation and Australian variation. Originally issued in Engelhard packaging as shown in the photo below. | N/A |  <50MINTAGE |
 | 0.5kg | Italic Font | [Italic Australian Hallmark] [999+ SILVER] [0•5kg] [Serial Number] | Cast Finish | 2nd series 0.5kg ingot in Australian variation, produced at the Engelhard refinery in Thomastown, Australia. These 0.5kg class ingots share the same approximate serial range as their 1KG and 50oz counterparts, without replication between weight class. | 000317 000414 000416 000541 000675 000680 000718 000720 000722 000830 000837 000849 |  <500MINTAGE |
 | 0.5kg | Italic Font | [Italic Australian Hallmark] [999+ SILVER] [SCCC Counterstamp] [0•5kg] [Serial Number] | Cast Finish | 2nd series 0.5kg ingot in Australian variation, produced at the Engelhard refinery in Thomastown, Australia. Ingot 000242 sold privately on April 12, 2017 for $3,000.00. Additional information regarding the ‘SCCC’ Southern Cross Coins and Commodities counterstamp may be found at this LINK. | 000242 000636 | <50 MINTAGE |
 | 0.5kg | Mid Hallmark | [Italic Australian Hallmark] [999+ SILVER] [0•5kg] [Serial Number] | [SILEC Counterstamp] | 2nd series 0.5kg ingot in Australian variation, produced at the Engelhard refinery in Thomastown, Australia. This ingot demonstrates the SILEC counterstamp on the reverse of the bar. Ingot 000939 demonstrates the SILEC counterstamp on the obverse, with remaining stampings applied to the reverse. Additional information regarding the SILEC counterstamp may be found at this LINK. | 000939 001004 | <50 MINTAGE |
 | 16.075oz | Mid Hallmark | [16.075] [999+] [Bull Hallmark in Elongated Octagon] [Serial Number] | Cast Finish | First generation and exceedingly rare 16.075oz Canadian ingot. | 103577 | <25 MINTAGE |
  | 16.075oz | Mid Hallmark | [999+] [16.075] [Bull Hallmark in Elongated Octagon] [Serial Number] | Cast Finish | 16.075oz Canadian ingot. Similar to our example above, though demonstrates different placement of weight and purity stampings. Ingot 132307 sold via eBay auction for $1,956.72 on June 22, 2016. Ingot 119397 sold via Mineral Exchange auction for $3,575.00 on November 17, 2024. Ingot 119404 sold via Mineral Exchange auction for $4,061.00 on May 18, 2025. | 119397 119398 119404 132307 132394 132397 132439 132469 132474 | <100 MINTAGE |
 | 16.075oz | Top Hallmark | [Bull Hallmark in Elongated Octagon] [SILVER 999+] [16.075 OZ. TR.] [Serial Number] | Extruded Finish | Based on example 60727, engraved October 4, 1971, we believe these bars were produced 1970-1971 period. Some examples were originally issued in a wooden presentation box, pictured below. Interestingly, it is marked 16.075oz which equates to exactly 500g, or 1/2 KILO in TR OZ specification. Bars 03024 and 60722 sold privately on March 15, 2017 for $1,800.00 each. Bar 3829 sold via eBay auction for $2,506.50 on May 14, 2021. Ingot 3848 sold via Mineral Exchange auction for $3,850 on March 10, 2024. Ingot 3829 sold via Mineral Exchange auction for $4,678.00 on June 15, 2025.  | 01518 01991 01992 02104 03024 3829 3830 3848 04412 04548 06296 14574 31900 60722 | <500 MINTAGE |
 | 16.075oz | Top Hallmark | [Bull Hallmark in Elongated Octagon] [SILVER 999+] [16.075 OZ. TR.] [Sporadic Serial Number Placement] | Extruded Finish | Error variation of our 16.075oz bar, above. One example, sold privately on January 9, 2017 for $4,000.00. This same example sold again via Mineral Exchange auction for $6,380.00 on June 1, 2025. | 29152 29153 29156 29157 29159 29160 | <25 |
  | 16.075oz | Top Hallmark | [Bull Hallmark in Elongated Octagon] [SILVER 999+] [16.075 OZ. TR.] [Serial Number] | Cast Finish | Identical to above extruded variety except this example is poured. Ingot 93124 sold on MinEx auction on February 11, 2024 for $4,074.00. | 93078 93138 95353 97892 112375 | <50 MINTAGE |
 | 16.075oz | Top Hallmark | [Serial Number] [Bull Hallmark in Elongated Octagon] [SILVER 999+] [16.075 OZ. TR.] | Cast Finish | Identical to above poured variety except this example demonstrates a serial number placement variation. | 109338 | <50 MINTAGE |
 | ½ KILO | Italic Boxed Hallmark | [Serial Number] [1/2 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | ½ KILO London portrait variety ingot. Ingot Y7542 sold for $2,362.90 via eBay auction on May 25, 2016. Ingot Y7242 sold for $3,662.95 via eBay on March 10, 2023. History of issuance for some of these ingots may be found at this LINK. | H3398 Y6812 Y7222 Y7359 Y7431 | <100 MINTAGE |
 | ½ KILO | Italic Boxed Hallmark | [Sideward ‘.999′] [Italic Boxed London Hallmark] [½ KILO] | Cast Finish | ½ KILO London landscape variety ingot. | N/A | <50 MINTAGE |
 | 500g | Unique Hallmark | [Serial Number] [Unique Circular Hallmark ’50 ANS DE TECHNOLOGIE THOMSON’] [Argent] [Circular Stamp ‘COMPAGNIE METAUX PRECIEUX – PARIS’ with ‘FONDEURS AFFINEURS’ Inner Stamp] [500 g] [Circular Stamp ‘MARCEL HOOGEWYS ESSAYEUR’] [999,9] | Cast Finish | 500g example produced in 1988 by CMP Engelhard of Paris, France. Although this example does not demonstrate an Engelhard hallmark, we are including it as it is a genuine Engelhard production piece as verified by the original assay certificate, depicted below. | 1060394 | <100 MINTAGE |
 | 32.150oz | Mid Hallmark | [999+] [Serial Number] [Hallmark in Elongated Octagon] [32.150] | Cast Finish | 1st series 32.150oz ingot, similar in font design to its 1st series 20oz and 25oz domestically produced counterparts. | 84869 84873 84915 | <100 MINTAGE |
 | 1 KILO | Mid Hallmark | [999+ FINE SILVER] [1 KILO.] [Hallmark in Elongated Octagon] [Serial Number] | Cast Finish | 1st series 1 KILO ingot. A private sale has been reported of a sequential pair in late 2022 at $5000.00. | P070507 P070544 P070573 P070574 P071347 P071490 P071570 P071594 | <250 MINTAGE |
 | 1 KILO | Mid Hallmark | [999+ FINE SILVER] [1 KILO.] [Hallmark in Elongated Octagon] [Serial Number] | Extruded Finish | 1st series 1 KILO extruded bar. | P118553 P118780 | <50 MINTAGE |
 | 1 KILO | Mid Hallmark | [999+ FINE SILVER] [1 KILO.] [9th Series 100oz Hallmark] [Serial Number] | Extruded Finish | 2nd series 1 KILO extruded bar. This series differs from the 1st series in that it shares the hallmark and stampings of the 6th series 50oz and 9th series 100oz bars. One known example. | P618536 | <25 MINTAGE |
 | 1kg | Italic Font | [Italic Australian Hallmark] [999+ SILVER] [1kg] [Serial Number] | Cast Finish | 1kg ingot in Australian variation, produced at the Engelhard refinery in Thomastown, Australia. | 001072 002539 002605 002620 004517 007381 005780 006981 007682 009858 012611 015953 016225 |  <10,000MINTAGE |
 | 1kg | Italic Font | [Italic Australian Hallmark] [999+ SILVER] [SCCC Counterstamp] [1kg] [Serial Number] | Cast Finish | 2nd series 1kg ingot in Australian variation, produced at the Engelhard refinery in Thomastown, Australia. Additional information regarding the SCCC Southern Cross Coins and Commodities counterstamp may be found at this LINK. | 002896 003049 003067 | <100 MINTAGE |
  | 1kg | Italic Font | [Italic Australian Hallmark] [999+ SILVER] [1kg] [Serial Number] | [SCCC Counterstamp] | 2nd series 1kg ingot in Australian variation, produced at the Engelhard refinery in Thomastown, Australia. This ingot demonstrates the SCCC counterstamp on the reverse of the bar. Additional information regarding the SCCC Southern Cross Coins and Commodities counterstamp may be found at this LINK. | 005955 006981 007021 010551 | <25 MINTAGE |
  | 1kg | Italic Font | [Italic Australian Hallmark] [999+ SILVER] [SCCC Counterstamp] [1kg] [Serial Number] | [SCCC Counterstamp] | 2nd series 1kg ingot in Australian variation, produced at the Engelhard refinery in Thomastown, Australia. This ‘error’ ingot demonstrates a single SCCC counterstamp on the obverse and a double SCCC counterstamp on the reverse of the bar. | 007096 | <5 MINTAGE |
 | 1kg | Italic Font | [Italic Australian Hallmark] [999+ SILVER] [1kg] [Serial Number] | [SILEC Counterstamp] | 2nd series 1kg ingot in Australian variation, produced at the Engelhard refinery in Thomastown, Australia. This ingot demonstrates the SILEC counterstamp on the reverse of the bar. Additional information regarding the SILEC counterstamp may be found at this LINK. | 006053 014140 014677 014663 014960 | <100 MINTAGE |
 | 1kg | Italic Font | [SILEC Counterstamp] | [Italic Australian Hallmark] [999+ SILVER] [1kg] [Serial Number] | 2nd series 1kg ingot in Australian variation, produced at the Engelhard refinery in Thomastown, Australia. This ingot demonstrates the SILEC counterstamp on the right side of the obverse and is of a uniqque serial number range. | 012564 | <5 MINTAGE |
 | 1kg | Italic Font | [SILEC Counterstamp] | [Italic Australian Hallmark] [999+ SILVER] [1kg] [Serial Number] | 2nd series 1kg ingot in Australian variation, produced at the Engelhard refinery in Thomastown, Australia. This ingot demonstrates the SILEC counterstamp centered on the obverse of the bar. Ingot 300060 sold privately on April 1, 2017 for $2,650.00. Additional information regarding the SILEC counterstamp may be found at this LINK. | 300046 300060 300125 300191 300192 300200 | <50 MINTAGE |
 | 1kg | Italic Font | [Italic Australian Hallmark] [AUSTRALIA] [999+ SILVER] [1kg] [Serial Number] | Cast Finish | 1kg ingot in Australian variation, produced at the Engelhard refinery in Thomastown, Australia. Unique in that ‘AUSTRALIA’ is stamped below the Engelhard hallmark. Note the VERY tight serial range on these. Ingot 011836 sold via eBay auction on June 10, 2020 for $2,200.00. Thanks to danman49 for this discovery! | 011826 011828 011830 011831 011836 011838 | <20 MINTAGE |
 | 1kg | Italic Font | [DEAK INTERNATIONAL]. [1kg] [999+ SILVER] [Serial Number] | Cast Finish | 1kg ingot produced by Engelhard Australia for DEAK International | 100107 100260 100743 101047 101561 | <500 MINTAGE |
 | 32.150oz | Mid Hallmark | [999+] [Serial Number] [Bull Hallmark in Elongated Octagon] [32.150] | Cast Finish | 1st series 32.150oz ingot in Canadian variation. Please note examples 122969 and 251360, pictured below, demonstrates a unique serial font typically seen on 8th series Canadian 20oz ingots. Ingot 122969 sold privately on April 7, 2023 for $2300.00.  | 95228 96654 96758 122969 251360 | <300 MINTAGE |
 | 32.150oz | Mid Hallmark | [999+] [Serial Number] [Bull Hallmark in Elongated Octagon] [32.150] | Cast Finish | 1st series 32.150oz ingot, similar to our example above though this ingot demonstrates a different purity font. | 111875 111877 111951 111996 | <100 MINTAGE |
 | 32.150oz | Mid Hallmark | [999+] Serial Number] [Hallmark in Elongated Octagon] [32.150] | Cast Finish | 2nd series 32.150oz ingot in Canadian variation. Although this ingot is similar to the two 32.150oz class ingots defined below, differences include serial number font and casting mould dimension. The casting mould used for this allowed for a large obverse surface area. This resulted in a thinner ingot than the two variety we define below. | 133915 134335 153371 171077 | <200 MINTAGE |
 | 32.150oz | Mid Hallmark | [999+] Serial Number] [Hallmark in Elongated Octagon] [32.150] | Cast Finish | 3rd series 32.150oz ingot in Canadian variation. Noticeably thicker than our example above. This ingot also demonstrates a smaller obverse surface area as well as serial font variation. | 219235 | <50 MINTAGE |
 | 32.150oz | Mid Hallmark | [999+] Serial Number] [Hallmark in Elongated Octagon] [32.150] | Cast Finish | 4th series 32.150oz ingot in Canadian variation. This ingot is demonstrates a casting mould that resulted in a slightly larger obverse surface area than our 219235 example directly above. Ingots 242084 and 242085 sold on January 9, 2017 for $2,300.00 each. | 241919 241920 242050 242084 242085 | <100 MINTAGE |
 | 32.150oz | Mid Hallmark | [999+] [32•150] [Bull Hallmark in Elongated Octagon] [Serial Number] | Cast Finish | 5th series 32.150oz ingot in Canadian variation. | 251378 | <100 MINTAGE |
  | 32.150oz | Mid Hallmark | [999+] [32•150] [Bull Hallmark in Elongated Octagon] [Serial Number] | Cast Finish | 6th series 32.150oz ingot in Canadian variation. This example demonstrates a larger font and a striated reverse finish. | 251396 | <100 MINTAGE |
 | 1 KILO Portrait Variety | Italic Boxed Hallmark | [Serial Number] [Italic Boxed ENGELHARD Hallmark] [999] | Cast Finish | Earliest known 1 KILO ingot in Portrait variation, possible prototype piece. Similar in casting mould shape to the more common London kilos presented below, though does not include a London designation. This was likely a prototype piece produced in the early 1960’s. Our appreciate to Yaseen Saddique for this discovery! | A0042 | <5 MINTAGE |
 | 1 KILO Portrait Variety | N/A | N/A | Cast Finish | Similar to other London portrait kilos, this variety lacks the Mocatta Goldsmid counterstamp. Example A1189 is rumored to have a BB London counterstamp, though we are awaiting photo confirmation. | A1189 A1637 | <50 MINTAGE |
 | 1 KILO Portrait Variety | Italic Boxed Hallmark | [ANDREW] [Serial Number] [1 KILO] [Italic Boxed Engelhard-CLAL London Hallmark] [999] | Cast Finish | 1 KILO Engelhard -CLAL London ingot in Portrait variation with large letter ‘B’ prefix. | B1438 | <5 MINTAGE |
 | 1 KILO Portrait Variety | Italic Boxed Hallmark | [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation. Does not include the Mocatta Goldsmid counterstamp. This early and limited variety of the ‘C’ prefix kilo demonstrated a smaller 999 stamp than the later variety below. | C1146 C1148 C1165 C1175 C1177 C1181 C1189 | <50 |
 | 1 KILO Portrait Variety | Italic Boxed Hallmark | [SP] [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation with ‘C’ prefix. Includes only the rectangular ‘SP’ Sharps-Pixley counterstamp. Additional information regarding the Sharps-Pixley counterstamp may be found at this LINK. | C4678 | <25 MINTAGE |
 | 1 KILO Portrait Variety | Italic Boxed Hallmark | [SHARPS PIXLEY LTD LONDON BULLION BROKERS] [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation. Includes only the circular Sharps-Pixley counterstamp. Ingot C4808 sold on eBay on February 20, 2023 for $3495.00. Ingot C5089 sold privately on March 13, 2023 for $3,900.00. Ingot C5085 sold via Mineral Exchange auction on November 2, 2024 for $3,684.00. Additional information regarding the Sharps-Pixley counterstamps may be found at this LINK. | C4793 C4808 C4817 C5085 C5086 C5089 | <50 MINTAGE |
 | 1 KILO Portrait Variety | Italic Boxed Hallmark | [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation. Does not include the Mocatta Goldsmid counterstamp. Ingot C6755 sold on eBay auction on February 11, 2023 for $2,895.00. | C4452 C4644 C4765 C6739 C8490 C8819 | <300 MINTAGE |
 | 1 KILO Portrait Variety | Italic Boxed Hallmark | [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation. Does not include the Mocatta Goldsmid counterstamp. Ingot D9595 sold via eBay auction on February 2, 2023 for $2,895.00. Ingot D9830 sold via eBay auction on March 14, 2023 for $2,985.00. | D1965 D7547 D8004 D9877 D9986 | <400 MINTAGE |
 | 1 KILO Portrait Variety | Italic Boxed Hallmark | [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation and smaller letter font prefix exclusive to ‘F’ prefix ingots. Ingot F3722 sold privately on March 3, 2023 for $4000.00. | F3615 F3680 F3722 F3728 F3894 | <100 MINTAGE |
 | 1 KILO Portrait Variety | Italic Boxed Hallmark | [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation. Does not include the Mocatta Goldsmid counterstamp. | H3307 | <50 MINTAGE |
  | 1 KILO Landscape Variety | Italic Boxed Hallmark | [Sideward •999] [Italic Boxed London Hallmark] [Serial Number] [1 KILO] | Cast Finish | 1 KILO London ingot in landscape variation. This ingot demonstrates a dot ‘•’ purity prefix. Ingot H24906 sold for $3,921.82 via eBay auction on August 3, 2022. Ingot H24906 sold again privately on March 11, 2023 for $6,250.00. | H23871 H24906 | <10 MINTAGE |
 | 1 KILO Landscape Variety | Italic Boxed Hallmark | [Sideward 999•] [Italic Boxed London Hallmark] [Serial Number] [1 KILO] | Cast Finish | 1 KILO London ingot in landscape variation. This ingot demonstrates a dot ‘•’ purity suffix stamping on the lower serial number range, which we’ve observed in examples below the J540 range. Ingot J2263 sold via eBay auction on February 17, 2023 $2,750.00. | J5 J40 J42 J377 J390 J538 J674 J755 J5122 J5653 J5707 | <300 MINTAGE |
  | 1 KILO Landscape Variety | Italic Boxed Hallmark | [Sideward 999•] [Custom Westminster Mint Hallmark] [Serial Number] [1 KILO] | Cast Finish | 1 KILO London ingot in landscape variation produced by Engelhard for The Westminster Mint. Ingot J5037 sold privately on March 10, 2023 for $4,250.00. Ingot J1012 sold privately on March 22, 2023 for $5,000.00. Ingot J2606 shown below was originally issued with 1969 Westminster certificate and collector case. Ingot J2606 sold for $5,528.00 via Mineral Exchange auction on February 25, 2024. Ingot J2527 sold for $5,722.00 via Mineral Exchange auction on November 24, 2024. | J1012 J1041 J1056 J1784 J2527 J2606 J5037 | <50 MINTAGE |
 | 1 KILO Landscape Variety | Italic Boxed Hallmark | [Sideward 999•] [Italic Boxed London Hallmark] [Serial Number] [1 KILO] | Cast Finish | 1 KILO London ingot in landscape variation. Ingot K6325 sold privately on March 3, 2023 for $4,500.00. | K6325 K6328 K6330 K6332 K9479 K9519 | <50 MINTAGE |
 | 1 KILO Landscape Variety | Italic Boxed Hallmark | [Sideward 999•] [Italic Boxed London Hallmark] [Serial Number] [Custom Westminster Mint Hallmark] [1 KILO] | Cast Finish | [Sideward 999] [Italic Boxed London Hallmark] [Serial Number] [Circular Westminster Mint Hallmark] [1 KILO]. Ingot K7541 sold privately on June 10, 2023 for $7,500.00. | K7541 | <5 MINTAGE |
 | 1 KILO Portrait Variety | Italic Boxed Hallmark | [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation with large ‘K’ letter serial prefix. | K9120 | <100 MINTAGE |
 | 1 KILO Landscape Variety | Italic Boxed Hallmark | [Sideward 999] [Italic Boxed London Hallmark] [Serial Number] [1 KILO] | Cast Finish | 1 KILO London ingot in portrait variation. Note the large ‘M’ letter prefix on the example presented. The ingot pictured was engraved for the 60th birthday of London Business Magnate Cyril Waterman, founder of Sherman & Waterman Associates Properties in London. We don’t have confirmation of Waterman’s relationship with Charles Engelhard, but given this bar is one of two known large “M” portrait examples, it was likely designated with intent and significance. M6295 was purchased from the Waterman estate on October 1, 2024 for 4,200.00GBP ($5,500.00US+/-). | M3262 M6295 | <5 MINTAGE |
 | 1 KILO Landscape & Portrait Variety | Italic Boxed Hallmark | [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in landscape and portrait variations. Note the large ‘N’ letter prefix on the example presented. | N8378 N8402 N8431 N8432 | <50 MINTAGE |
 | 1 KILO Landscape Variety | Italic Boxed Hallmark | [Sideward 999] [Italic Boxed London Hallmark] [Serial Number] [1 KILO] | Cast Finish | 1 KILO London ingot in landscape variation. Ingot N6916 sold on eBay auction on February 11, 2023 $2,895.00. Ingot N9117 sold on MinEx auction on August 27, 2023 for $3,233.00 including Buyer fee. | N608 N6916 N6955 N9046 N9116 N10154 N10237 N10277 | <300 MINTAGE |
  | 1 KILO Landscape Variety | Italic Boxed Hallmark | [Sideward 999] [Italic Boxed London Hallmark] [Serial Number] [1 KILO] | Cast Finish | 1 KILO London ingot in landscape variation. Leading edge demonstrates custom collection of silver hallmarks. | N8721 N9059 | <25 MINTAGE |
 | 1 KILO Landscape Variety | Italic Boxed Hallmark | [Sideward 999] [Italic Boxed London Hallmark] [Serial Number] [1 KILO] | [Winston Churchill] [Profile Image of Winston Churchill] [CHURCHILL][1874-1974] | 1 KILO London ingot in landscape variation produced by Asprey & Company, LTD. of Bond Street, London to commemorate Winston Churchill’s 100th birthday. Ingot demonstrates less rounded corners and a smoother surface texture. Produced with commemorative Asprey & Company box, pictured below.   | N10267 | 1 MINTAGE |
 | 1 KILO Landscape Variety | Italic Boxed Hallmark | [Sideward 999] [Italic Boxed London Hallmark] [Serial Number] [MOCATTA & GOLDSMID LTD LONDON BULLION BROKERS] [1 KILO] | Cast Finish | 1 KILO London ingot in landscape variation. Possibly the first P series kilo with M & G counterstamp. Ingot P1001 sold privately on June 10, 2023 for $7,500.00 | P1001 | <5 MINTAGE |
 | 1 KILO Portrait Variety | Italic Boxed Hallmark | [MOCATTA & GOLDSMID LTD LONDON BULLION BROKERS] [Serial Number] [1 KILO] [999] [Italic Boxed London Hallmark] | Cast Finish | 1 KILO London ingot in Portrait variation with ‘P’ prefix and M & G counterstamp. Additional information regarding the Mocatta & Goldsmid counterstamp may be found at this LINK. Early ingots from approximate range P2450 – P2800 had a left-facing M&G stamp as shown below. There were also a few stray left-facing M&G stamps higher in the serial run. Interesting to note that only the “P” prefix Portrait London kilos have the Engelhard London hallmark at the bottom of the obverse. Ingot P5311 sold via eBay auction for $2,295.00 on January 17, 2023 . Ingot P5174 sold via eBay auction for $2,125.00 on June 18, 2024. Ingots P8066 and P8067 sold via Mineral Exchange auction for $4,400.00 or $2,200.00 each on September 1, 2024. Ingot P7197 sold via Mineral Exchange auction for $2,633.00 on May 11, 2025. | P2452 |  <7,000MINTAGE |
 | 1 KILO | Italic Boxed Hallmark | [MOCATTA & GOLDSMID LTD LONDON BULLION BROKERS] [Serial Number Prefix] [1 KILO] [999] [Italic Boxed London Hallmark] | Cast Finish | 1 KILO London ingot in Portrait variation with ‘P’ prefix and M & G counterstamp. This ingot has the familiar letter prefix but lacks a serial number. Additional information regarding the Mocatta & Goldsmid counterstamp may be found at this LINK. | N/A | 1 MINTAGE |
 | 1 KILO Portrait Variety | Italic Boxed Hallmark | [Serial Number] [1 KILO] [999] [Italic Boxed London Hallmark] | Cast Finish | 1 KILO London ingot in Portrait variation. Produced without the Mocatta & Goldsmid counterstamp. | P16117 | <500 MINTAGE |
 | 1 KILO LandscapeVariety | Italic Boxed Hallmark | [Sideward 999] [Italic Boxed London Hallmark] [Serial Number] [1 KILO] | Cast Finish | 1 KILO London ingot in landscape variation, originally issued in a felt lined presentation box with brass clasp. Example P7049 demonstrates unique hallmarks on the leading edge, pictured below. | P7027 P7043 P7049 | <25 MINTAGE |
  | 1 KILO LandscapeVariety | Italic Boxed Hallmark | [Sideward 999] [Italic Boxed London Hallmark] [Serial Number] [1 KILO] | Cast Finish | 1 KILO London ingot in landscape variation, originally issued in a felt lined presentation box with brass clasp. Highest serial number variety of Engelhard London ingots with a range between P17950 – P19999, with an estimated <25 examples in the 4 digit range as shown in the entry above. Some examples have engraving on the leading edge, which appear to be Engelhard endorsed engravings, and likely all done in 1974. Ingot P18731 sold on eBay auction on January 20, 2023 for $2,495.00. | P17958 P18013 P18073 P18260 P18564 P18973 P19491 P19823 P19949 |  <2,000MINTAGE |
| Photo Forthcoming | 1 KILO Portrait Variety | Italic Boxed Hallmark | [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation. | R5253 | <5 MINTAGE |
 | 1 KILO Portrait Variety | Italic Boxed Hallmark | [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation. Ingot S4874 sold on eBay auction on February 20, 2023 $2,750.00. | S3435 S3825 S5400 S6001 S7573 | <400 MINTAGE |
 | 1 KILO Portrait Variety | Italic Boxed Hallmark | [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation with large ‘S’ letter serial prefix. This ingot demonstrates a dot ‘•’ purity suffix stamping. | S1056 S1075 | <50 MINTAGE |
 | 1 KILO Portrait Variety | Italic Boxed Hallmark | [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation with large ‘S’ letter serial prefix. Similar to our example above, though does not demonstrates a dot ‘•’ purity suffix stamping. Also appears to have a larger obverse surface area. | S2612 S7596 S8184 S8199 S8212 | <50 MINTAGE |
  | 1 KILO Landscape Variety | Italic Boxed Hallmark | [Sideward 999] [Italic Boxed London Hallmark] [Serial Number] [1 KILO] | Cast Finish | 1 KILO London ingot in landscape variation, originally issued in a felt lined presentation box with brass clasp. | S1557 S1613 S1659 S1711 S1930 S2155 | <200 MINTAGE |
 | 1 KILO Portrait Variety | Hallmark Absent | [Serial Number] [1 KILO] [999] | Cast Finish | 1 KILO London ingot in Portrait variation. Very rare hallmark absent variety. | S4717 S4743 | <10 MINTAGE |
 | 1 KILO Portrait Variety | Hallmark Absent | [1 KILO] [Serial Number] [999] | Cast Finish | 1 KILO London ingot in Portrait variation. Very rare hallmark absent variety and varies from our example above in that the placement of the serial number and weight class stampings are reverse. | S2026 | <1 MINTAGE |
| 1 KILO Portrait Variety | Italic Boxed Hallmark | [SHARPS PIXLEY LTD LONDON BULLION BROKERS] [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation. Includes only the circular Sharps-Pixley counterstamp. Ingot S4087 Sharps-Pixley sold privately on March 10, 2023 for $3,900.00. Additional information regarding the Sharps-Pixley counterstamps may be found at this LINK. | S4047 S4078 S4166 S4179 S4929 | <100 MINTAGE |
 | 1 KILO Portrait Variety | Italic Boxed Hallmark | [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation with large ‘T’ letter serial prefix. | T1659 T1898 T1899 T1902 T1903 | <50 MINTAGE |
 | 1 KILO | Italic Boxed Hallmark | [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation. Ingot T4581 sold privately on February 17, 2023 for $2,750.00. | T258 T323 T2361 T4577 T4581 T5309 | <300 MINTAGE |
 | 1 KILO | Italic Boxed Hallmark | [SP] [SHARPS PIXLEY LTD LONDON BULLION BROKERS] [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation. Includes both Sharps-Pixley counterstamps. Additional information regarding the Sharps-Pixley counterstamps may be found at this LINK. | T14 T68 T235 T364 T2429 | <200 MINTAGE |
| 1 KILO | Italic Boxed Hallmark | [SHARPS PIXLEY LTD LONDON BULLION BROKERS] [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation. Includes only the circular Sharps-Pixley counterstamp. Additional information regarding the Sharps-Pixley counterstamps may be found at this LINK. | T67 | <100 MINTAGE |
 | 1 KILO | Italic Boxed Hallmark | [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in portrait variation with ‘U’ prefix. Ingot U8994 sold privately on March 3, 2023 for $4,250.00. | U4566 U4584 U8994 U9003 | <50 MINTAGE |
 | 1 KILO | Italic Boxed Hallmark | [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation with large ‘U’ letter serial prefix. Ingots U4966 and U4979 sold on January 9, 2017 for $2,800.00 each. Ingot U4902 sold on February 20, 2022 for $3,182.00. Ingot U4994 sold privately on March 3, 2023 for $4,250.00. | U4902 U4966 U4979 U4994 U4997 | <50 MINTAGE |
 | 1 KILO | Italic Boxed Hallmark | [Custom IBB LONDON Hallmark] [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO Engelhard London ingot in Portrait variation with IBB LONDON counterstamp. | A1189 S5701 T2437 U4611 | <25 MINTAGE |
 | 1 KILO | Italic Boxed Hallmark | [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in Portrait variation. Ingot X1430 sold privately on April 12, 2017 for $4,250.00. | X1430 X1443 X1444 | <25 MINTAGE |
 | 1 KILO | Italic Boxed Hallmark | [Serial Number] [1 KILO] [Italic Boxed London Hallmark] [999] | Cast Finish | 1 KILO London ingot in portrait variation with ‘Y’ prefix. Ingot Y7557 sold privately on February 17, 2023 for $3000.00. | Y6189 Y6614 Y6687 Y6717 Y7453 Y7557 | <200 MINTAGE |
 | 1 KILO | Italic Boxed Hallmark | [Serial Number] [1 kilo] [Italic Boxed Hallmark] [999] | Extruded Finish | 1 Kilo bar in portrait variation with ‘A’ prefix and 4-digit serial number assignment. Although the Italic Boxed Hallmark of this example lacks a ‘London’ designation, we do believe it to have been produced there as the hallmark border style is a match to the other London examples. | A1030 A1062 A1122 | <25 MINTAGE |
 | 1 KILO | Elongated Octagon | [ENGELHARD Sheffield Smelting] [1 kilo] [999. + FINE SILVER] [Hallmark in Elongated Octagon] [Serial Number] | Bordered Pebble Finish | 1 KILO extruded bar in portrait variation with Sheffield Smelting counterstamp. Example presented was sourced directly from Great Britain in December, 2014, from a private collection. Additional information regarding the Sheffield Smelting counterstamp may be found at this LINK. | A0212 A0258 A0261 A0279 A0324 | <100 MINTAGE |
 | 1 KILO | Elongated Octagon | [ANDREAS SOPHOCLIDES & CO LTD] [1 kilo] [999. + FINE SILVER] [Hallmark in Elongated Octagon] [Serial Number] | Bordered Pebble Finish | 1 KILO extruded bar in portrait variation with Andreas Sophoclides & Co LTD. counterstamp. It has been reported that 25 examples [A0350 through A0375] were produced by Engelhard for Andreas Sophoclides & Co LTD. Apparently 20 were subsequently sold and melted, leaving only five surviving examples. | A0375 | <25 MINTAGE |
 | 1 KILO | Italic Boxed Hallmark | [Sideward •999] [Italic Boxed London Hallmark] [1 KILO] | Cast Finish | 1 KILO London ingot in landscape variation, similar to our examples above, though this ingot lacks a serial number and demonstrates a dot ‘•’ purity prefix stamping. | N/A | <10 MINTAGE |
 | 1 KILO | Unique Hallmark | [Serial Number] [Unique Circular Hallmark ’50 ANS DE TECHNOLOGIE THOMSON’] [Argent] [Circular Stamp ‘COMPAGNIE METAUX PRECIEUX – PARIS’ with ‘FONDEURS AFFINEURS’ Inner Stamp] [1 Kilo] [Circular Stamp ‘MARCEL HOOGEWYS ESSAYEUR’] [999,9] | Cast Finish | 1 KILO example produced in 1987 by CMP Engelhard of Paris, France. Although this example does not demonstrate an Engelhard hallmark, we are including it as it is a genuine Engelhard production piece as verified by the original assay certificate, depicted below.  | 1062389 1062402 | <200 MINTAGE |
 | 1 KILO | Italic Boxed Hallmark | [Serial Number] [Italic Boxed Hallmark] [Argent] [1 KILO] [Circular Stamp ‘COMPAGNIE METAUX PRECIEUX – PARIS’ with ‘FONDEURS AFFINEURS’ Inner Stamp] [999,9] [Circular Stamp ‘MARCEL HOOGEWYS ESSAYEUR’] | Cast Finish | 1 KILO example produced by CMP Engelhard of Paris, France. | 1075815 |  <50 MINTAGE |
 | 1 KILO | Italic Boxed Hallmark | [Serial Number] [Italic Boxed Hallmark] [1 KILO] [Circular Stamp ‘COMPAGNIE METAUX PRECIEUX – PARIS’ with ‘FONDEURS AFFINEURS’ Inner Stamp] [999,9] [Circular Stamp ‘MARCEL HOOGEWYS ESSAYEUR’] | Cast Finish | 1 KILO example produced by CMP Engelhard of Paris, France. | 1085685 1087697 1087772 | <100 MINTAGE |
 | 1 KILO | Italic Boxed Hallmark | [Serial Number] [Italic Boxed Hallmark] [1 KILO] [Circular Stamp ‘COMPAGNIE METAUX PRECIEUX – PARIS’ with ‘FONDEURS AFFINEURS’ Inner Stamp] [Circular Stamp ‘MARCEL HOOGEWYS ESSAYEUR’] [999,9] | Cast Finish | 1 KILO example produced by CMP Engelhard of Paris, France. Similar to our above example, though demonstrates reverse placements of secondary circular stampings. | 1087695 1104875 1104876 1123161 1123184 | <100 MINTAGE |
 | 1 KILO | Italic Boxed Hallmark | [Serial Number] [Italic Boxed Hallmark] [1 KILO] [Circular Stamp ‘COMPAGNIE METAUX PRECIEUX – PARIS’ with ‘FONDEURS AFFINEURS’ Inner Stamp] [Circular Stamp ‘S.LEYGUES ESSAYEUR’] [999,9] | Cast Finish | 1 KILO example produced by CMP Engelhard of Paris, France. Similar to our above example, though demonstrates a ‘S.LEYGUES ESSAYEUR’ hallmark. | 1087776 | <25 MINTAGE |
 | 1 KILO | Italic Boxed Hallmark | [Serial Number] [Italic Boxed Hallmark] [ARGENT] [Circular Stamp ‘COMPAGNIE METAUX PRECIEUX – PARIS’ with ‘FONDEURS AFFINEURS’ Inner Stamp] [Circular Stamp ‘S.LEYGUES ESSAYEUR’] [999,9] | Cast Finish | 1 KILO example produced by CMP Engelhard of Paris, France. Similar to our above example, though demonstrates an ‘ARGENT’ stamping in place of the ‘KILO’ stamping. | 11127713 | <25 MINTAGE |
