Whitman Expo
Results Set Record for the Firm's Highest Grossing Auction Sale in its 90+ Year History.
No AU55 photos on record yet — showing auction lots of this item in other grades
Coin Value History
1860 G$20 Clark, Gruber & Co., K-4 AU55
Thank you to our sponsors!
Go check them out!
AU55
$3,105
AU50
$276,000
1860 $20 Clark, Gruber & Co. Twenty Dollar MS64 NGC. Kagin-4, High R.6. To the best of our knowledge, this is the first tim...
MS64
NGC
$690,000
1860 $20 Clark, Gruber & Co. Twenty Dollar XF45 PCGS. K-4, High R.6. ...
XF45
PCGS
$305,500
1860 $20 Clark, Gruber $20 Copper Pattern--Scratched, Cleaned--ANACS. AU Details, Net XF40. K-4a, R.5. Struck as a pattern...
XF40
ANACS
$2,300
1860 Clark, Gruber & Co. Twenty Dollar XF40 ANACS. ...
XF40
ANACS
$3,565
1860 Clark, Gruber & Co. $20. K-4. Rarity-6+. AU Details--Repaired (PCGS).
$84,000
1860 Clark, Gruber & Co. $20. K-4. Rarity-6+. Unc Details--Repaired (NGC).
$144,000
1860 Clark, Gruber & Co. $20. K-4. Rarity-6+. AU Details--Repaired (PCGS).
$120,000
1860 Clark, Gruber & Co. $20. K-4. Rarity-6+. AU Details--Repaired (NGC).
$57,600
Greysheet News
Stack's Bowers Galleries' Summer 2026 Global Showcase Auction Realizes Over $70 Million
10/7/2026
The Business of Numismatics: October 2026 Greysheet Editor's Letter
While reviewing the initial results in various categories of recent auctions, my initial take is that the sales were moderate to strong.
10/6/2026
Mack C. Chase Collection of Walking Liberty Half Dollars to Anchor Stack's Bowers Galleries' November 2026 Showcase Auction
More than 300 lots, consisting of high quality Walking Liberty half dollars from the Mack C. Chase Collection are set to cross the auction block as part of Stack's Bowers Galleries' November Showcase Auction, the official auction of the Whitman Expo.
10/6/2026
Events
Knoxville Coin and Currency Show - TN
Location: Rothchild Catering & Conference Center
Saturday, August 1, 2026
