Whitman Expo
On September 1, Stack's Bowers conducted a Rarities Night session in California as part of this firm's post-ANA World's Fair of Money® auction extravaganza.
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Prior to the 1980s, there were only six known Dubosq $10s -- two of which were impounded (one in the Smithsonian Institution, and the other in the collection of the Bank of California). In the mid-1980s, a pair were dug up in California, and another example was discovered in the wreckage of the S.S. Central America. Around 2010, a holed example was discovered in a box of California tokens. Today, the finest strictly original Dubosq $10 is a choice VF.
Obverse Description
Liberty Head with DUBOSQ & Co. on diadem, 1850, 13 stars around
Reverse Description
Federal eagle S.M.V. CALIFORNIA GOLD. TEN D.
Catalog Information
GSID:
11773
Designer:
James B. Longacre
Obverse Designer:
James B. Longacre
Obverse Lettering:
DUBOSQ & Co., 1850
Reverse Designer:
James B. Longacre
Reverse Lettering:
S.M.V. CALIFORNIA GOLD. TEN D.
Strike Type:
Business
Coin Shape:
Round
Variety:
Dubosq & Co.
Variety 2:
K-2
Coin Date:
1850
Denomination:
G$10
Designation:
MS
Mint Location:
San Francisco
Mintage:
8 known
Coinage Type:
Private & Pioneer Gold
Coinage Years:
1850
Composition:
Gold
Rarity:
L7
PCGS #:
10179
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Subject: I would like to contribute catalog info to CDN for 1850 G$10 Dubosq & Co., K-2 MS
Body: Referring page: http://www.greysheet.com/prices/item/1850-dubosq-and-co-ten-dollar-territorial-gold-coinage/gsid/11773 GSID: 11773 Title: 1850 G$10 Dubosq & Co., K-2 MS
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Coin Value History
1850 G$10 Dubosq & Co., K-2 MS
Value By Grade
1850 G$10 Dubosq & Co., K-2 MS
CPG (retail) values
Currency
Grade Range
Grading Authority
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Pricing
Values
Greysheet & CPG® Values
| Grade | CAC | CPG Value (Retail) | Greysheet Price (Wholesale) |
|---|---|---|---|
| MS60 |
|
$792,000 | $1,234 |
| MS60 | - | $660,000 | $1,234 |
| AU50 |
|
$1,234 | $1,234 |
| AU50 | - | $1,234 | $1,234 |
| XF45 |
|
$1,234 | $1,234 |
| XF45 | - | $1,234 | $1,234 |
| XF40 |
|
$1,234 | $1,234 |
| XF40 | - | $1,234 | $1,234 |
| VF25 |
|
$1,234 | $1,234 |
| VF25 | - | $1,234 | $1,234 |
| VF20 |
|
$1,234 | $1,234 |
| VF20 | - | $1,234 | $1,234 |
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Events
Heritage Auctions: US Currency Tuesday Select Auction
Location: Heritage Auctions
Tuesday, September 1, 2026
Heritage Auctions: World Paper Money Tuesday Select Auction
Location: Heritage Auctions
Tuesday, September 1, 2026
Heritage Auctions: World & Ancient Coins ANA Signature Auction & Platinum Session
Location: Heritage Auctions
Tuesday, September 1, 2026