AG | 100oz

This page contains our current information on 100oz class Engelhard silver production bars and Legacy Ingots.  For substantial bullion investors looking to accumulate quantity and quality bullion, there is no better match than the 100oz Engelhard commercial bar.  These iconic bars are immediately recognizable in the bullion world as ‘the standard’ of value and exchange.  While approximately 800,000 examples of all US and Canadian varieties were manufactured over Engelhard’s tenure, a very high percentage of these bars were melted over the years for industry and smaller increment fabrication to bars, rounds and jewelry.

One of our regular contributors reminisced about a day, in 2010, when he walked in to a prominent Daytona Beach jewelry store and noticed half an Engelhard 100oz 1st series bar on the counter.  He jokingly asked, ‘where’s the other half?’ and the salesperson replied, ‘we only use Engelhard silver to make our jewelry and rounds.  It’s the most trusted silver.’  This particular merchant designs and fabricates between 15,000 to 20,000 1oz custom silver commemorative rounds every year for ‘Bike Week’, and they have been doing this for some 25 years.  Hence, their production consumes 150-200 Engelhard 100oz bars every year for these custom rounds.  Makes you wonder if there are other similar stories out there!

EXAMPLE	HALLMARK	OBVERSE	REVERSE	COMMENTARY	SAMPLE SERIAL NUMBERS	ICR | ESTIMATED MINTAGE
	Engelhard ‘E’ Logo	[Engelhard ‘E’ Logo in Octagon]  [999+]  [FINE SILVER]  [100 TR OZ]  [Serial Number]	Flat Machined Finish	First generation extruded bar in portrait variation, approximate dimensional match to the 8th and 9th series extruded bars.  All Engelhard discovered this new variety in October, 2014.	BP000622 BP000626 BP000679 BP000701 BP000782 BP000783 BP000792 BP001303 BP001308 BP001328 BP001370	<250 MINTAGE
	Engelhard ‘E’ Logo	[Liberty Head Logo]  [Liberty Trade Silver Custom ‘Torch’ Logo MADE IN USA]  [Engelhard ‘E’ Logo in Octagon]  [.999+]  [FINE SILVER]  [100 TROY OUNCES]  [Serial Number]  [© 1986 MTB]  [UNITED STATES OF AMERICA]	Flat Machined Finish	All Engelhard is grateful to have sourced this example’s history from the original owner of bar A0006.  This 100oz Manfra, Tordella & Brooks bar was produced by Engelhard in 1986 for MTB Bank, New York.  We believe these examples were originally issued with an assay certificate, which typically demands a higher valuation when present.  It is speculated these bars were offered to customers who opened a new account at MTB Bank, New York, with $100,000.00 deposit.  We now have 15 serial numbers logged and remain confident in our estimate of <25 examples on this variety, as these were very exclusive and beautiful bars and not likely melted.  This ‘A’ prefix serial range is shared with MTB bars in 5oz and 10oz class.  Bar A0454 sold privately on January 20, 2017 for $4,000.00.	A0006 A0008 A0023 A0030 A0085 A0092 A0115 A0319 A0367 A0454 A0546 A0566 A0580 A0583 A0585	<25 MINTAGE

IMAGE	HALLMARK	OBVERSE	REVERSE	COMMENTARY	SAMPLE SERIAL NUMBERS	ICR | ESTIMATED MINTAGE
	Mid Hallmark	[100.000]  [999+]  [Hallmark in Elongated Octagon]  [Serial Number]	Cast Finish	1st series in 6-digit serial variation, three zero suffix on weight designation.  We believe this serial number range spans from approximately 010000 to 024800.  Anomalies include occasional triangular stamping to left of serial number and a separately serial numbered ingot, 52937, both pictured.  Note the triangular stamping is the bottom half of the leading ‘X’ filler blank that slipped out of position.  We believe the early assignments in this serial number range were shared with the error ‘X’ and ‘Y’ bars in 10oz class of same approximate production period.  The only known example below is unique in that the serial number gang stamp was misaligned, requiring Engelhard to hand stamp the last two digits individually.	010122 010283 010324 011761 012663 013970 014999 015503 017310 018157 019160 020668 021355 021431 022374 024707 52937	<3,000 MINTAGE
	Mid Hallmark	[100.000]  [999+]  [Hallmark in Elongated Octagon]  [Serial Number]	Cast Finish	1st series in 6-digit serial variation, three zero suffix on weight designation.  Similar to our above example, but of a taller and more narrow casting mould, as demonstrated in the photos below.	022055 022066 022256 023099	<50 MINTAGE
	Mid Hallmark	[1.000]  [999+]  [Hallmark in Elongated Octagon]  [Serial Number]	Cast Finish	1st series in 6-digit serial variation, three zero suffix on weight designation.  Similar to our example above, though this ingot demonstrates a unique ‘1.000’ vs. ‘100.000’ weight class stamp error. Ingot 014999 demonstrates a 1.000 stamp with a l00 overstamp.	014937 014956 014999	<25 MINTAGE
	Mid Hallmark	[100.000]  [999+]  [Hallmark in Elongated Octagon]  [Serial Number]	Cast Finish	1st series in 6-digit serial variation, three zero suffix on weight designation and letter ‘A’ serial prefix anomaly.  Ingot A 018229 sold privately on March 12, 2017 for $3,750.00.	A 018229	<10 MINTAGE
	Mid Hallmark	[100.000]  [999+]  [Hallmark in Elongated Octagon]  [Serial Number]	Cast Finish	1st series in 6-digit serial variation, three zero suffix on weight designation and letter ‘X’ serial prefix anomaly.	X014916	<10 MINTAGE
	Mid Hallmark	[100.000]  [999+]  [Hallmark in Elongated Octagon]  [Serial Number]	Cast Finish	1st series in 6-digit serial variation, three zero suffix on weight designation and ‘-‘ serial prefix anomaly.  Ingot -017554 sold on January 20, 2017 for $4,750.00.	-017159 -017396 -017554 -017590	<50 MINTAGE
	Mid Hallmark	[100 T.OZ]  [Hallmark in Elongated Octagon]  [999+FINE SILVER]  [Serial Number]	Cast Finish	2nd series in 7-digit serial variation, this 100oz variety of ingot was the first to include a ‘T.OZ’ Troy Ounce weight designation and lacks the trailing zeros.  Based on font study and serial number range, we believe this 7-digit variation preceded the 6-digit, seen below.  Early examples of this ingot show a center hallmark stamping as demonstrated in the photo below.  Ingot 1000622 sold privately on December 5, 2017 for $3,750.00.	1000042 1000043 1000101 1000210 1000359 1000445 1000549 1000622 1000727 1000802	<750 MINTAGE
	Mid Hallmark	[100 T.OZ]  [Hallmark in Elongated Octagon]  [999+FINE SILVER]  [Serial Number]	Cast Finish	2nd series in unique ‘1.’ serial prefix.	1.026625	<25 MINTAGE
	Mid Hallmark	[100 T.OZ]  [Hallmark in Elongated Octagon]  [999+FINE SILVER]  [Serial Number]	Cast Finish	2nd series in 6-digit serial variation.  We believe this serial number range spans from 024800 to 034100.  Note that ingots later in the serial number run demonstrate a larger font size on the weight and T.OZ designations.	024839 025781 026601 027148 029738 030676 031425 032137 033851 034035	<1,500 MINTAGE
	Mid Hallmark	[100 T.OZ]  [Hallmark in Elongated Octagon]  [999+FINE SILVER]  [Serial Number]	Cast Finish	2nd series in W-prefix serial variation.  We believe these exceedingly rare ingots were leftover 2nd series moulds that were later christened with a large ‘W’ prefix denoting the Anaheim, California facility and that they were given a very low serial number for the ‘W’ run.  Ingot W50017 sold via eBay on July 6, 2017 for $4,000.00	W50002 W50015 W50017 W50021 W50027 W50071 W50139	<50 MINTAGE
	Mid Hallmark	[999+]  [Serial Number]  [Hallmark in Elongated Octagon]  [100.000]	Cast Finish	3rd series in 4-digit serial variation.  These ingots carry a more refined casting finish and crisper stampings.  Example 5207 demonstrates beautiful cratered cooling marks along the leading edges as shown below.	5207	<50 MINTAGE
	Mid Hallmark	[999+]  [Serial Number]  [Hallmark in Elongated Octagon]  [100•000]	Cast Finish	3rd series in 5-digit serial variation.  Similar to our example above, though includes floating decimal on the weight class stamp.	19026 30481 30482 30701	<100 Mintage
	Mid Hallmark	[999+]  [Serial Number]  [Hallmark in Elongated Octagon]  [100.000]	Cast Finish	3rd series in 5-digit serial variation, similar to our 4-digit serial example above.  Despite the seemingly wide serial number range, we believe these 5-digit ingots were only produced randomly in small runs and are, in fact, quite rare.	59222 63629 71957 76769 84596 84599 84618	<500 MINTAGE
	Mid Hallmark	[999+]  [Serial Number]  [Hallmark in Elongated Octagon]  [100.000]  [MFR Designation]	Cast Finish	3rd series in 5-digit serial variation with ‘MFR’ [Metals Fabrication & Refining] designation.  These ingots carry a more refined casting finish and crisper stampings.  Examples known to date demonstrate varied mould sizes.	33737 ‘MFR’ 36001 ‘MFR’ 36064 ‘MFR’ 48053 ‘MFR’ 52722 ‘MFR’ 55752 ‘MFR’	<50 MINTAGE
	Mid Hallmark	[999]  [Serial Number]  [Hallmark in Elongated Octagon]  [100.000]  [MFR Designation]	Cast Finish	3rd series in 5-digit serial variation with ‘MFR’ [Metals Fabrication & Refining] designation.  Serial Number 33745 MFR is the only known example with a 999 (no plus) purity stamp.	33745 ‘MFR’	<5 MINTAGE
	Mid Hallmark	[99 9+]  [FINE SILVER]  [100 TR. OZ.]  [Hallmark in Elongated Octagon]  [Serial Number]	Cast Finish	4th series in ‘P’ serial prefix variation, these examples demonstrate a space in the purity designation.  There are serial number designation crossovers in this and the 5th and 9th series examples.  Note the space in ’99 9+’ purity designation.  Some of the early ingots were apparently poured into cold casting moulds that caused irregularities on the reverse and edges.  However, this process did not result in weight deficit.	P025142 P025180 P025346 P027393 P028539 P028556	<1,000 MINTAGE
	Mid Hallmark	[99.9+ FINE SILVER]  [Custom ‘SilverTowne’ Hallmark]  [100 TR. OZ.]  [Serial Number]	Cast Finish	100oz class SilverTowne ingot produced by Engelhard.  It is of interest to note the casting mould of this variety is identical to the Engelhard 4th series ‘P’ example as demonstrated in the photos presented below.	P000094 P000095 P000100 P000219 P000285 P000321 P000351 P000391	<50 MINTAGE
	Mid Hallmark	[999+]  [FINE SILVER]  [100 TR. OZ.]  [Hallmark in Elongated Octagon]  [Serial Number]	Cast Finish	5th series in ‘P’ serial prefix variation.This 5th series is noticeably more crude in hand than 6th series, below, and is noticeably larger as well.  A transitional variety between 4th and 6th series, this ingot demonstrates the pour inconsistencies of the 4th series.	P028645 P028721 P028969 P028982 P029264	<100 MINTAGE
	Mid Hallmark	[999+]  [FINE SILVER]  [100 TR. OZ.]  [Hallmark in Elongated Octagon]  [Serial Number]	Cast Finish	6th series in ‘C’ serial prefix variation.  Ingot C0000611 sold privately on April 5, 2017 for $4,000.00.  Ingot C0000375 sold privately on September 21, 2018 for $4,200.00.	C0000375 C0000611 C0000646	<500 MINTAGE
	Mid Hallmark	[999+]  [FINE SILVER]  [100 TR. OZ.]  [Hallmark in Elongated Octagon]  [Serial Number]	Cast Finish	6th series in ‘P’ serial prefix variation.  Our archives indicate that bar P042092 was purchased in 1975.  Note the rare waffle pattern found on ingot P051451, also pictured.  There is strong evidence that supports production timeframe overlapped on both ‘P’ and ‘W’ series ingots between serial assignments P050000 and P071499.  Some of the early ingots were apparently poured into cold casting moulds that caused irregularities on the reverse and edges.  However, this process did not result in weight deficit.	C0000375 C0000611 P029467 P030115 P035860 P040691 P043331 P046913 P049181 P051451 P052158 P053477 P058193 P060806 P061153 P061618 P065441 P070631	<10,000 MINTAGE
	Mid Hallmark	[999+]  [FINE SILVER]  [100 TR. OZ.]  [Hallmark in Elongated Octagon]  [Serial Number]	Cast Finish	6th series in ‘P’ serial prefix variation.  Similar to our above example, though demonstrates a letter ‘K’ prefix stamp anomaly as demonstrated below.	P056715 P056803 P067410	<50 MINTAGE
	Mid Hallmark	[9 99+]  [FINE SILVER]  [100 TR. OZ.]  [Hallmark in Elongated Octagon]  [Serial Number]	Cast Finish	6th series ‘P’ serial prefix variation, this variety with space separation between 2nd and third 9’s in purity stamping [99 9+] as seen on the 4th series, above.  Our thanks to Luke for bringing this to our attention.	P041269 P041335 P041352	<50 MINTAGE
	Mid Hallmark	[999+]  [FINE SILVER]  [100 TR. OZ.]  [Hallmark in Elongated Octagon]  [Serial Number]	Cast Finish	7th series ‘P’ serial prefix variation.  Similar to our example above, though without space separation between 2nd and third 9’s in purity stamping.  Note ingot P033487 below with the ‘k’ error stamp below the ‘P’ prefix.	P030981 P032314 P033487 P034173 P038903 P040618	<100 MINTAGE
	Mid Hallmark	[999+]  [FINE SILVER]  [100 TR. OZ.]  [Hallmark in Elongated Octagon]  [Serial Number]	Cast Finish	7th series ‘P’ serial prefix variation.  Similar to our example above, though demonstrates the ‘AQ’ serial prefix anomaly.	P034231	<5 MINTAGE
	Mid Hallmark	[999+]  [FINE SILVER]  [100 TR. OZ.]  [Hallmark in Elongated Octagon]  [Serial Number]	Cast Finish	8th series in ‘W’ serial prefix, produced exclusively at the ‘Engelhard West’ recycling facility operated in Anaheim, California for a 21-year run from 1979-2000.  There is strong evidence that supports production timeframe overlapped on both ‘P’ and ‘W’ series ingots with the ‘W’ prefix beginning at ‘W050XXX’.  Some of the early ingots were apparently poured into cold casting moulds that caused irregularities on the reverse and edges.  However, this process did not result in weight deficit.  Many examples like W118483 shown at left illustrate beautiful cooling lines and surface colors as a result of the production process.  Note that ingot W050552 demonstrates a serial number font error as demonstrated below.	W050552 W050746 W055568 W059183 W063194 W076247 W086045 W102858 W110970 W122771 W132874 W148243 W156744 W167925 W173250 W180288 W118483 W186284	<15,000 MINTAGE
	Mid Hallmark	[999+]  [FINE SILVER]  [100 TR. OZ.]  [Hallmark in Elongated Octagon]  [Serial Number]	Smooth Machined Finish	9th series in ‘P’ serial prefix with occasional ‘C’ and ‘S’ serial prefix variations, first fully machined 100oz ‘bar’ variety.  One of the C002xxx bars was ‘drilled and filled’ with lead.  Our serial number registry suggests this serial assignment was shared with ‘P’ series 10oz variety and not indicative of full range.  Interesting to note that one example within this variety demonstrates a 350843 Canadian range serial number, pictured below.  We believe this was one of the last bars produced in this variety with a happenstance serial number assignment from unassigned Canadian serial numbers.	C002030 C019669 C022834 C028820 C099888 P117647 P167970 P206735 P237138 P252862 P289737 P330621 P382415 P457927 P530882 P578603 P612936 S000227 S002464 S004027 S008649	<300,000 MINTAGE
	100oz	[999+]  [FINE SILVER]  [100 TR. OZ.]  [Italic Block Hallmark w/ ‘A’ Triangle]  [Serial Number]	Smooth Machined Finish	Possible prototype 9th series in letter ‘A’ serial prefix anomaly.  Note the circular, hand-stamped serial font.	A71500	<25 MINTAGE
	Mid Hallmark	[999+]  [FINE SILVER]  [100 TR. OZ.]  [Italic Block Hallmark w/ ‘A’ Triangle]  [Serial Number]	Smooth Machined Finish	10th series in ‘P’ serial prefix variation, most of these bars were originally issued in the Engelhard plastic ‘Flag’ wrapper.  P909003 is one of the bars that was hollowed out and filled with lead.	C033406 C047284 D053829 D054316 D058553 P630186 P644906 P761152 P770322 P850397 P870658 P915783 P943382 P959841 P978832 P990585 P998998	<375,000 MINTAGE
	Mid Hallmark	[999+]  [FINE SILVER]  [100 TR. OZ.]  [Italic Block Hallmark w/ ‘A’ Triangle]  [Serial Number]	Smooth Machined Finish	10th series in ‘P’ serial prefix variation, most of these bars were originally issued in the Engelhard plastic ‘Flag’ wrapper.  Similar to our example, above, except the serial number demonstrates square, rotary dial impressions.	P000061 P000943 P030910 P033035	<50,000 MINTAGE
	Mid Hallmark	[100 TR. OZ.]  [FINE SILVER]  [999+]  [Custom ‘Gold Standard Corporation’ Hallmark in Elongated Octagon]  [Serial Number]	Flat Machined Finish	1st series 100oz commercial bar produced exclusively for the Gold Standard Corporation.  This example closely matches its 8th series Engelhard counterpart, seen above.  It appears there was serial number overflow on these ‘P’ series examples.  All examples demonstrate slightly different stamping placements.  Bar P319931 sold for $2,850.00 on December 26, 2015 at 2x spot price.  Bar P000061 sold for $4,500.00 on April 12, 2023 on eBay.  Additional information regarding the Gold Standard Corporation may be found at this LINK.	P000051 P000061 P000084 P000138 P000139 P000140 P000141 P000175 P319931 P342881 P342882 P342884	<100 MINTAGE
	Mid Hallmark	[Custom ‘Gold Standard Corporation’ Hallmark in Elongated Octagon] [Serial Number]  [100 TR.OZ.]  [FINE SILVER]  [.999+]	Flat Machined Finish	2nd series 100oz commercial bar produced exclusively for the Gold Standard Corporation.  Similar to our example above with exception of reflective finish, decorative beaded obverse circumference and alternate placement of stampings.  Also noted is the convex lettering vs. concave stampings of 1st series on all except the serial number.  Bar #435 sold on Ebay auction on March 12, 2024 for $3,995.00.  Additional information regarding the Gold Standard Corporation may be found at this LINK.	100 203 301 305 385 400 799 852 941	<1,000 MINTAGE

EXAMPLE	HALLMARK	OBVERSE	REVERSE	COMMENTARY	SAMPLE SERIAL NUMBERS	ICR | ESTIMATED MINTAGE
	Top Hallmark	[Italic boxed Australian Hallmark]  [999+SILVER]  [100 OZ]  [Serial Number]	Cast Finish	1st series 100oz ingot in Australian variation.  One known example.	004443	<25 MINTAGE
	Top Hallmark	[Italic Hallmark]  [999+SILVER] [100 OZ]  [Serial Number]	Cast Finish	2nd series 100oz ingot in Australian variation.  One known example.	04455	<25  MINTAGE
	Top Hallmark	[DEAK INTERNATIONAL]  [999+SILVER] [100 OZ]  [Serial Number]	Cast Finish	100oz ingot produced by Engelhard Australia for Deak International..	05014 05022	<50 MINTAGE

EXAMPLE	HALLMARK	OBVERSE	REVERSE	COMMENTARY	SAMPLE SERIAL NUMBERS	ICR | MINTAGE
	Mid Hallmark	[Serial Number]  [999+]  [Bull Hallmark in Elongated Octagon]  [100.000]	Cast Finish	1st series Canadian ingot in 5-digit serial variation.  This series had a tight serial run that was shared with other sizes, so actual mintage is likely less than indicated.	88901 88904 88916 88941 88981 89027 89142 89153	<150 MINTAGE
	Mid Hallmark	[999+]  [Serial Number]  [Bull Hallmark in Elongated Octagon]  [100.000]	Cast Finish	2nd series Canadian ingot in 6-digit serial variation.	116279 131338	<1,000 MINTAGE
	Mid Hallmark	[999+]  [Serial Number]  [Bull Hallmark in Elongated Octagon]  [100.000]	Cast Finish	2nd series Canadian ingot in 6-digit serial variation, though this example demonstrates the slanted ‘999’ purity stamp as observed in 3rd series Canadian examples.	111256	<100 MINTAGE
	Mid Hallmark	[999+]  [100.000][Bull Hallmark in Elongated Octagon] [Serial Number]	Cast Finish	3rd series Canadian ingot in 6-digit serial variation.	174512 147106 151385 160010 185439 194376	<4,000 MINTAGE
	Top Hallmark	[Bull Hallmark in Elongated Octagon]  [999+]  [Serial Number]  [100.000]	Cast Finish	4th series Canadian ingot in 6-digit serial variation.  Note that some examples demonstrate a smaller serial number font.  Occasionally seen with a ‘waffle pattern’ reverse, also pictured. Interesting to note that one 8th Series US production ingots demonstrates a 350843 Canadian range serial number, pictured below.  We believe this was one of the last bars produced in the 8th series variety with a happenstance serial number assignment from unassigned Canadian serial numbers.	145608 259920 263677 304481 310650 333607 334444 350645	<15,000 MINTAGE
	Top Hallmark	[Bull Hallmark in Elongated Octagon]  [999+]  [Serial Number]  [100.000]	Cast Finish	4th series Canadian ingot in 6-digit serial variation.  Similar to our example above, though demonstrates a ‘1’ serial prefix.	1•197925	<25 MINTAGE
	Top Hallmark	[Bull Hallmark in Elongated Octagon]  [999+]  [Serial Number]  [100.000]	Cast Finish	4th series Canadian ingot in 6-digit serial variation.  Similar to our example above, though demonstrates a ‘2’ serial prefix.  Note the square rotary dial impressions below the serial number in the photo below, which include an inverted serial impression.	2 136030	<50 MINTAGE

• The 6-digit landscape variety without letter serial prefix that include three-trailing zeroes on weight designation were the first produced.
• The 6-digit and 7-digit landscape variety in ‘T. OZ’ designation came second.
• The 5-digit landscape variety in three-trailing zero weight designation came next, to include ‘MFR’ variation.
• The letter-prefix serial number landscape examples with the Standard Engelhard Logo came next, to include both poured and extruded production.  These include ‘P’ prefix, ‘S’ prefix, ‘W’ prefix and ‘C’ prefix serial number designations.  We believe there was some assignment overlap during production, in that serial number prefix is not necessarily indicative of variety production order.
• The  Engelhard ‘Italic Block Hallmark w/ ‘A’ Triangle’ landscape variety was the last to be produced.  We believe the ‘MTB’ portrait variety was produced shortly prior to the end of of the ‘Italic Block Hallmark’ examples.
• There are three known counterstamp variations, including Manfra, Tordella & Brooks, SilverTowne and Gold Standard Corporation, that were contract produced.
• There are unsubstantiated claims that ‘P’ represents ‘poured’ and ‘C’ represents ‘cast’ in serial prefix. We challenge this theory, as it was the casting method by which Engelhard produced their poured ingots. Casting is quite similar to making ice cubes in a freezer, in that liquid [molten metal] is used to create a solid ingot by use of a mould. As such, the terms ‘poured’ and ‘cast’ are synonymous. Further, Engelhard could not have designated a ‘P’ prefix in anticipation of the ‘C’ prefix series as advancement of their production technology was likely not foreseeable when they designated the ‘P’ prefix. There are also claims that ‘W’ represents ‘wide’ series, which is doubtful because the majority of 10oz pieces were produced in wide [landscape] variety. We speculate, at this time, that ‘W’ is representative of the Engelhard ‘West’ Facility at which they were produced and that ‘P’ and ‘C’ were likely arbitrarily designated.
• NOTE:  There may be duplicate serial numbers, not of the same design, due to the Triangle Logo variety ‘rolling over’ after hitting P999999.