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Demand for early copper and Colonial-era numismatic treasures drives strong results in Heritage Auctions' July 13 Early Copper & Colonial U.S. Coins Showcase Auction
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The Kagin-12 is the earlier of two known varieties of 1852 Assay Office $10. Both varieties share an obverse die, and like the Humbert $10s before them, the reverse dies seem not to have held up to use. Around 12 examples of the K-12 are known in private hands, with the single finest being a toned choice BU that was formerly a part of the Garrett collection. A choice AU example would qualify for the condition census.
Obverse Description
Eagle clutching shield and ribbon UNITED STATES OF AMERICA. 884 THOUS: TEN DOLS.
Reverse Description
Engine turning UNITED STATES ASSAY OFFICE OF GOLD SAN FRANCISCO CALIFORNIA 1852.
Catalog Information
GSID:
375999
Obverse Lettering:
UNITED STATES OF AMERICA. 884 THOUS: TEN DOLS.
Reverse Lettering:
UNITED STATES ASSAY OFFICE OF GOLD SAN FRANCISCO CALIFORNIA 1852.
Strike Type:
Business
Coin Shape:
Round
Edge:
Reeded
Variety:
U.S. Assay Office
Variety 2:
First Reverse, K-12
Coin Date:
1852
Denomination:
G$10
Designation:
MS
Mint Location:
California
Mintage:
Approx. 12 known
Coinage Type:
Private & Pioneer Gold
Coinage Years:
1852-1853
Composition:
Gold
Rarity:
H6
PCGS #:
933535
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Coin Value History
1852 G$10 U.S. Assay Office, First Reverse, K-12 MS
Value By Grade
1852 G$10 U.S. Assay Office, First Reverse, K-12 MS
CPG (retail) values
Currency
Grade Range
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Pricing
Values
Greysheet & CPG® Values
| Grade | CPG Value (Retail) | Greysheet Price (Wholesale) |
|---|---|---|
| MS63 | $53,000 | $1,234 |
| MS62 | $37,000 | $1,234 |
| MS61 | $1,234 | $1,234 |
| MS60 | $1,234 | $1,234 |
| AU58 | $1,234 | $1,234 |
| AU55 | $1,234 | $1,234 |
| AU53 | $1,234 | $1,234 |
| AU50 | $1,234 | $1,234 |
| XF45 | $1,234 | $1,234 |
| XF40 | $1,234 | $1,234 |
| VF35 | $1,234 | $1,234 |
| VF30 | $1,234 | $1,234 |
| VF25 | $1,234 | $1,234 |
| VF20 | $1,234 | $1,234 |
1852 G$10 U.S. Assay Office, Second Reverse, K-12a MS
Worth: $5,750 – $48,000
1852 G$50 U.S. Assay Office, 887 THOUS, K-13 MS
Worth: $26,000 – $200,000
1852 G$50 U.S. Assay Office, 900 THOUS, K-14 MS
Worth: $24,000 – $690,000
1853 G$10 U.S. Assay Office, TEN D., 884 THOUS, K-15 MS
Worth: $22,500 – $81,600
1853 G$10 U.S. Assay Office, TEN D., 900 THOUS, K-16 MS
Worth: $7,500 – $54,000
1853 G$20 U.S. Assay Office, TWENTY D., 884 THOUS, K-17 MS
Worth: $14,000 – $156,000
1853 G$20 U.S. Assay Office, TWENTY D., 900 THOUS, K-18 MS
Worth: $5,750 – $72,000
1853 G$20 U.S. Assay Office, TWENTY D., 900 THOUS, K-18 PR
Worth: $150,000 – $150,000
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Events
Midlands Coin Club Coin, Currency and Collectibles Show - SC
Location: Medallion Center
Friday, May 1, 2026
