100 oz Engelhard Silver Bar 6th Series (K Prefix Anomaly, LQ Rotary Dial, Error Digit Serial Number)

100 oz Engelhard Silver Bar 6th Series (K Prefix Anomaly, LQ Rotary Dial, Error Digit Serial Number)

Own an exceptionally rare piece of vintage bullion history with the 100 oz Engelhard Silver Bar 6th Series featuring the K Prefix Anomaly, LQ Rotary Dial, and Error Digit Serial Number. Produced by the legendary Engelhard Corporation, this massive silver bar contains 100 troy ounces of .999 fine silver and represents a fascinating example of a rare production anomaly from one of the most respected names in precious metals. No longer produced and increasingly difficult to locate on the secondary market, this bar is highly desirable among advanced Engelhard collectors and vintage bullion enthusiasts.

For decades, Engelhard was recognized as one of the world’s premier precious metals refiners, producing trusted gold and silver products for investors, institutions, and collectors. During the 1970s and 1980s, Engelhard became especially known for its investment silver bars, which gained a reputation for quality, accurate weight, and recognizable branding. Although Engelhard eventually exited the retail bullion market, its vintage bars remain highly collectible because surviving examples are finite and cannot be reproduced.

This 6th Series Engelhard 100 oz Silver Bar stands apart due to its unusual stamping characteristics. The bar displays a “K” prefix anomaly, with an additional “LQ” rotary dial prefix appearing beneath the K marking, believed to be the result of a stamping error during production.

Adding to its uniqueness, the serial number features error digits beneath each individual serial number digit. These secondary digits appear to be two numbers lower than their corresponding serial number digits, creating a fascinating and highly unusual manufacturing anomaly. Such errors provide collectors with a rare glimpse into the vintage production methods used during Engelhard’s era of hand-operated rotary stamping processes.

Product Features:

• Contains 100 troy oz of .999 fine silver
• 6th Series Bar
• Produced by Engelhard Corporation
• Bars are securely packaged for safe delivery
• Obverse: Features the Engelhard logo along with the weight, purity, and serial number.
• Reverse: Intentionally left blank.

Representing both precious metal value and a fascinating piece of manufacturing history, the 100 oz Engelhard 6th Series Silver Bar with K Prefix Anomaly is a true collector’s treasure. Its combination of massive silver weight, discontinued status, and unusual serial-number errors makes it a standout acquisition for collectors seeking rare Engelhard pieces that showcase the unique imperfections and craftsmanship of vintage bullion production.

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