• 1851 Baldwin Values

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The Greysheet Catalog (GSID) of the Baldwin (1850–1851) series of Private & Pioneer Gold in the U.S. Coins contains 2 distinct entries with CPG® values between $35,000.00 and $960,000.00. Augustus Humbert, a New York watchcase maker, was appointed United States assayer, and he placed his name and

The Greysheet Catalog (GSID) of the Baldwin (1850–1851) series of Private & Pioneer Gold in the U.S. Coins contains 2 distinct entries with CPG® values between $35,000.00 and $960,000.00.

Augustus Humbert, a New York watchcase maker, was appointed United States assayer,

and he placed his name and the government stamp on the ingots of gold issued by Moffat & Co. The assay office, a provisional government mint, was a temporary expedient to

accommodate the Californians until the establishment of a permanent branch mint.

The fifty-dollar gold piece was accepted by most banks and merchants as legal

tender on a par with standard U.S. gold coins and was known variously as a slug,

quintuple eagle, or five-eagle piece. It was officially termed an ingot.

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1851 G$10 Baldwin, K-4 MS
Value Range: $35,000 - $360,000
$35,000 - $360,000
1851 G$20 Baldwin, K-5 MS
Value Range: $700,000 - $960,000
$700,000 - $960,000

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1849 G$5 Moffat & Co., K-4 MS

Auction Ends: 7/16/2026

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