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.
Auction lot photos of this item graded AU55
Coin Value History
1860 DT$20 Clark Gruber, Copper Die Trial AU55
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1860 $20 Clark, Gruber Twenty Dollar, Gilt Copper Die Trial -- Fields Tooled -- ANACS Details. AU55 Details. K-4a, R.5. ...
AU55
$4,880
1860 $20 Clark, Gruber $20 Copper Die Trial, Gilt -- Fields Tooled -- ANACS. AU55 Details. K-4a, R.5. Reeded Edge. ...
AU55
ANACS
$4,957
AU55
NGC
$2,300
1860 $20 Clark, Gruber $20 Copper Die Trial AU55 PCGS....
AU55
PCGS
$2,990
1860 $20 Clark, Gruber $20 Copper Die Trial AU53 NGC. K-4a, R.5. ...
AU53
NGC
$7,930
1860 $20 Clark, Gruber $20 Copper Die Trial AU53 PCGS. K-4a, R.5....
AU53
PCGS
$5,400
1860 $20 Clark, Gruber $20 Copper Die Trial AU53 PCGS. K-4a, R.5....
AU53
PCGS
$6,000
1860 $20 Clark, Gruber $20 Copper Die Trial -- Repaired, Gilt -- ANACS. AU50 Details. K-4a, R.5. ...
AU50
ANACS
$3,600
1860 $20 Clark, Gruber $20 Copper Die Trial--Scratched, Plated--NCS. AU Details. ...
AU50
$1,438
1860 $20 Clark, Gruber $20 Copper Die Trial--Repaired--NCS. AU Details. ...
AU50
$3,738
1860 $20 Clark, Gruber Twenty Dollar Copper Die Trial MS63 Brown NGC. K-4a, R.5. ...
MS63
NGC
$5,124
1860 $20 Clark, Gruber $20 Copper Die Trial MS62 Brown NGC. K-4a, R.5....
MS62
NGC
$6,900
1860 Clark, Gruber & Co. $20 Die Trial. K-4a. Rarity-5. Gilt Copper. Reeded Edge. Very Fine, Altered Surfaces (Uncertified).
$2,520
1860 Clark, Gruber & Co. $20 Die Trial. K-4a. Rarity-5. Copper. Reeded Edge. VF-35 (PCGS). OGH.
VF35
PCGS
$2,640
1860 $20 Clark, Gruber $20 Copper Die Trial VF25 PCGS. K-4a, R.5. ...
VF25
PCGS
$4,406
1860 $20 Clark, Gruber $20 Copper Die Trial VF35 PCGS. K-4a, R.5. ...
VF35
PCGS
$4,700
1860 $20 Clark, Gruber Twenty Dollar Copper Pattern VF35 NGC. K-4a, R.5. ...
VF35
NGC
$4,406
1860 $20 Clark, Gruber $20 Copper Die Trial MS62 Brown NGC. ...
MS62
NGC
$7,475
1860 $20 Clark, Gruber $20 Copper Die Gilt Trial--Cleaned--ANACS. AU Details, Net XF40. K-4a, R.5. Struck as a pattern for ...
XF40
ANACS
$4,370
MS62
NGC
$3,450
VF30
$2,012
Greysheet News
1796 Coin in Post-ANA Auction Rarities Session
11/9/2026
Review Held for Dollars, Comic Art Coins and Medals
Commissioners reviewed reverse designs for the four American Innovation dollars scheduled to be released in 2028 and obverse and reverse designs for the 2027 issues in the Comic Art Coin and Medal Program.
11/6/2026
The Business of Numismatics: November 2026 Greysheet Editor's Letter
The rare coin market so far in 2026 has been somewhat volatile, with greater price swings happening over a shorter period of time when compared to historical norms.
11/4/2026
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