1851 Half Eagle Die Trial - K-2, State of California, Silver
Strike Type
Coin Details
Auction Record
$15,600 MS63 01-16-2022 Heritage Auctions
Description
This silver die trial was struck from the dies of the State of California Assay Office, a government-authorized facility established to bring order to the chaotic private gold coinage that proliferated during the California Gold Rush. By 1851, the federal government recognized that the lack of a western mint was causing serious monetary problems — private coiners varied widely in the honesty of their weight and fineness, and merchants had no reliable way to assess the value of the dozens of different private gold coins in circulation. The State of California Assay Office was authorized to assay (test) and stamp gold ingots and coins with their actual metal content, providing a degree of official verification. The Kagin-2 designation identifies this as a specific die variety from the Assay Office's half eagle ($5) production. Struck in silver rather than gold, this die trial allowed the Assay Office to test the quality and alignment of its dies using a less expensive precious metal. Silver die trials are particularly interesting because silver's physical properties — its hardness, malleability, and the way it flows under striking pressure — are similar enough to gold to provide a meaningful test of how the dies would perform during actual gold production. The State of California Assay Office operated until the San Francisco Mint opened in 1854, at which point federal coinage assumed the role of standardizing western money.
Rarity Notes
Extremely rare. Silver die trials from the State of California Assay Office are among the rarest items in territorial numismatics, with most varieties known in single specimens.
Cross References
Kagin-2; State of California Assay Office
External References
Error Varieties
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Other Strike Types in This Series
1851 California Two and a Half Dollar - K-1b Restrike
1851 Half Eagle Die Trial - K-2a, State of California, Copper

1851 Silver State of California, Gilt Gold Double Eagle

1851 State of California K-1a Gold Quarter Eagle
1851 State of California Ten Dollar - Copper

1851 State of California Ten Dollar - Gilt Silver
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