100 oz Engelhard Silver Bar

A Discontinued Classic in the 100oz Silver Market

The 100oz Engelhard silver bar is one of the most recognised and actively traded silver bars on the secondary market. Engelhard ceased retail bullion production in the late 1980s, and the company itself was acquired by BASF in 2006 for $5 billion. Despite decades off the production line, Engelhard bars remain among the most liquid silver products available, carried by every major US dealer and commanding a consistent brand premium above currently produced alternatives.

Charles W. Engelhard Sr. founded the company in 1902 in Newark, New Jersey, initially through the acquisition of the Charles F. Croselmire Company. His son, Charles Engelhard Jr., consolidated the family holdings into Engelhard Industries Inc. in 1958, listing the company on the NYSE. By the 1950s, Engelhard was the world's largest precious metals smelter. The younger Engelhard is widely cited as the inspiration for Ian Fleming's James Bond villain Auric Goldfinger.

The 100oz format was one of Engelhard's core products during its retail bullion years, which ran from the late 1960s through approximately 1986. Every bar is .999 fine silver, individually serial-numbered, and carries the distinctive Engelhard hallmark. Production methods included cast (poured) and pressed formats, each with slightly different visual characteristics but identical weight and purity.

The collector premium on Engelhard 100oz bars reflects both scarcity and brand loyalty. A significant number of Engelhard bars were melted during the 1979-1980 silver price spike, when silver briefly reached approximately $50 per ounce, reducing the surviving population below the original production numbers. This historical attrition has reinforced long-term demand among collectors who seek bars with documented provenance.

Engelhard 100oz Silver Bar Details

Serial Number Formats

Engelhard 100oz bars use letter-prefix serial number formats. Common prefixes for the 100oz size include P, S, W, and C, followed by numerical sequences. The serial number is the primary authentication marker and should be checked against the known formats documented by the AllEngelhard.com collector community, which maintains the definitive reference catalogue for all Engelhard bar varieties.

Authentication

Engelhard 100oz bars are among the most counterfeited silver bars. Fakes typically fail on font details, serial number format accuracy, edge finishing quality, and precise weight measurements. Genuine bars show consistent fonts and spacing specific to their production era. Buyers should purchase from reputable dealers, and secondary-market purchases should be verified against AllEngelhard.com's definitive pages on known counterfeits. Most dealers will assay or at minimum weigh and measure a secondary-market 100oz bar before purchasing it.

Tax Treatment for the Engelhard 100oz Silver Bar

As a private-mint silver bar (not legal tender in any jurisdiction), the Engelhard 100oz follows standard silver bullion tax treatment. The bar's discontinued and collectible status does not alter its tax classification for purchase or capital gains purposes.

United States

No federal sales tax. Approximately 35 states exempt investment bullion from state sales tax. Capital gains are taxed at the 28% collectibles rate for long-term holdings, consistent with all precious metals. The .999 purity meets IRA fineness requirements, though IRA eligibility depends on the specific custodian; some custodians may require bars from currently accredited refiners.

United Kingdom

20% VAT on purchase. Capital Gains Tax at 18% or 24% on disposal. No CGT exemption for bars. The collector premium embedded in Engelhard bar pricing is subject to the same VAT as the underlying metal value, amplifying the tax impact.

Canada

GST/HST exempt for silver at 99.9% purity or above. Capital gains at 50% inclusion rate.

Australia

GST-free for investment-grade silver at 99.9% purity. Capital gains apply with a 50% discount for holdings exceeding 12 months.

New Zealand

GST-exempt at 99.9% purity. No formal capital gains tax.

Singapore

The IPM exemption requires silver at 99.9% purity. Engelhard bars meet the purity threshold, but the discontinued manufacturer status may affect IPM classification. Buyers should verify with their dealer.

Hong Kong

No sales tax, import duty, or capital gains tax.

South Africa

15% VAT on silver bullion with no exemption.

From Industrial Powerhouse to Collector's Favourite

Engelhard's journey from a Newark metalworking operation to the world's largest precious metals smelter spanned most of the twentieth century. Charles Engelhard Sr. acquired the Croselmire Company in 1902 and expanded rapidly, purchasing Baker & Co. (a platinum smelter) in 1904 and establishing the Hanovia Chemical and Manufacturing Company in 1905. The elder Engelhard built a vertically integrated precious metals empire that processed gold, silver, platinum, and palladium for industrial and investment applications.

Charles Engelhard Jr. took the family business public in 1958, listing Engelhard Industries on the New York Stock Exchange. Under his leadership, the company became the dominant force in precious metals refining, processing gold for the US Treasury and handling significant volumes of South African gold during the apartheid era. The company's industrial reach extended beyond bullion into automotive catalysts and materials technology.

Engelhard's retail silver bar production began in the late 1960s and peaked during the silver market boom of the late 1970s. The Hunt Brothers' attempted corner of the silver market in 1979-1980, which drove prices to approximately $50 per ounce, generated intense retail demand for silver bars. Ironically, the same price spike caused widespread melting of existing bars (including Engelhard's own production), as holders sold into the record prices. The survivors of this meltdown period are now rarer than production numbers alone would suggest.

By the mid-1980s, Engelhard shifted its focus away from retail bullion toward industrial catalysts and advanced materials. Bar production wound down around 1986. BASF, the German chemical conglomerate, acquired Engelhard in 2006 after an initially hostile bid, and the company was renamed BASF Catalysts LLC. The Engelhard name disappeared from corporate use but lives on in the bullion market, where bars continue to trade at premiums that reward their provenance and scarcity.

The AllEngelhard.com community, maintained by collectors, has catalogued over 40 distinct 1oz bar varieties alone, documenting production methods, serial number formats, hallmark variations, and rarity ratings across every weight class. For the 100oz size, several prefix series (P, S, W, C) represent different production runs, and bars with less common prefixes can command higher collector premiums.

Engelhard 100oz vs Currently Produced 100oz Bars

The fundamental trade-off with the Engelhard 100oz is paying a collector premium for 100 ounces of .999 silver that could be acquired more cheaply from a currently producing refiner. The premium reflects brand heritage and scarcity, not metal content. Buyers focused purely on accumulating silver weight will find better value in bars from Asahi Refining, the Royal Canadian Mint, or ABC Refinery.

Asahi Refining acquired Johnson Matthey's precious metals business in 2015 and now produces 100oz bars under its own brand. Johnson Matthey was Engelhard's closest competitor during the retail bullion era, and JM 100oz bars also trade on the secondary market at a premium, though typically a smaller one than Engelhard commands. The Engelhard premium reflects greater variety of types, stronger collector community engagement, and the Goldfinger association.

The 100oz Academy silver bar and 100oz Frontier Mint silver bar represent the current US private mint market at lower premiums. These are straightforward investment bars without the historical cachet. For an investor accumulating a position in silver, the premium difference between an Engelhard bar and a current-production alternative could be better deployed buying additional silver.

For the collector-investor who values both metal content and numismatic interest, the Engelhard 100oz occupies a unique position. The bars are fully liquid as bullion (any dealer will buy at melt plus a brand premium), while also carrying collector value that tends to appreciate independently of silver spot price movements. This dual value proposition is the bar's distinguishing feature in the market.