Whitman Expo
As America celebrates its 250th anniversary, Robert L. Rodriguez combines cutting-edge science, numismatic research, and detective work to uncover new evidence about one of the nation's most enigmatic artifacts.
Auction lot photos of this item graded MS65
Coin Value History
1827 50c Square Base 2, O-105 MS65
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1827 50C Square Base 2, O-105, R.3, MS65 NGC. ...
MS65
NGC
$9,988
1827 50C Square Base 2, O-105, R.3, MS64 PCGS....
MS64
PCGS
$3,360
1827 50C Square Base 2, O-105, R.3, MS64 PCGS....
MS64
PCGS
$4,080
1827 50C Square Base 2, O-105, R.3, MS63 PCGS. ...
MS63
PCGS
$3,172
1827 50C Square Base 2, O-105, R.3, MS62 NGC. ...
MS62
NGC
$1,234
1827 50C Square Base 2, O-105, R.3, MS61 NGC....
MS61
NGC
$1,260
1827 50C Square Base 2, O-105, R.3, -- Improperly Cleaned -- NCS. Unc Details. Mintage 5,493,400. ...
MS60
$720
1827 50C Square Base 2, O-105, R.3, AU58 NGC. Mintage 5,493,400....
AU58
NGC
$780
1827 50C Square Base 2, O-105, R.3, AU58 PCGS. Certified in a first-generation "rattler" holder. PCGS Population: (3/3). NG...
AU58
PCGS
$1,440
1827 50C Square Base 2, O-105, R.3, AU58 PCGS. PCGS Population: (3/3). NGC Census: (7/6). AU58. Mintage 5,493,400. Fr...
AU58
PCGS
$1,320
1827 50C Square Base 2, O-105, R.3, XF40 PCGS. CDN: $220 Whsle. Bid for NGC/PCGS XF40. Mintage 5,493,400. ...
XF40
PCGS
$256
1827 50C Square Base 2, O-105, R.3, AU50 PCGS. PCGS Population: 2 in 50, 15 finer (1/26). CDN: $308.55 Whsle. Bid for NGC/...
AU50
PCGS
$331
1827 50C Square Base 2, O-105, R.3, AU55 NGC. NGC Census: (8/13). Mintage 5,493,400....
AU55
NGC
$516
1827 50C Square Base 2, O-105, R.3, VF30 ANACS. Mintage 5,493,400....
VF30
ANACS
$159
1827 50C Square Base 2, O-105, R.3, VF35 PCGS. CAC. PCGS Population: (0/26). NGC Census: (0/34). CDN: $137.50.Whsle. Bid fo...
VF35
PCGS
$192
1827 50C Square Base 2, O-105, R.3, AU53 PCGS. PCGS Population: (5/9). NGC Census: (3/20). CDN: $330 Whsle. Bid for NGC/PCG...
AU53
PCGS
$480
1827 50C Square Base 2, O-105, R.3, XF45 PCGS. PCGS Population: (7/16). NGC Census: (3/27). CDN: $209 Whsle. Bid for NGC/PC...
XF45
PCGS
$288
1827 50C Square Base 2, O-105, R.3, AU55 PCGS. PCGS Population: (3/6). NGC Census: (7/13). AU55. Mintage 5,493,400. F...
AU55
PCGS
$780
1827 Capped Bust Half Dollar. O-105. Rarity-3. Square Base 2. EF Details--Cleaned (PCGS).
$180
1827 50C Square Base 2, O-105, R.3, XF40 PCGS. PCGS Population: (1/19). NGC Census: (4/29). XF40. Mintage 5,493,400. From...
XF40
PCGS
$132
1827 50C Square Base 2, O-105, R.3, XF45 PCGS. PCGS Population: (4/14). NGC Census: (3/26). XF45. Mintage 5,493,400. ...
XF45
PCGS
$228
1827 50C Square Base 2, O-105, R.3, AU50 PCGS. PCGS Population: (2/12). NGC Census: (3/23). AU50. Mintage 5,493,400. ...
AU50
PCGS
$288
1827 50C Square Base 2, O-105, R.3, XF40 NGC. NGC Census: (4/29). PCGS Population: (1/16). CDN: $130 Whsle. Bid for problem...
XF40
NGC
$141
1827 50C Square Base 2, O-105, R.3, XF45 NGC. Ex: The Skidaway Island Collection. NGC Census: (3/25). PCGS Population (...
XF45
NGC
$194
1827 50C Square Base 2, O-105, R.3, AU50 NGC. NGC Census: (3/22). PCGS Population (2/6). Mintage: 5,493,400. From The S...
AU50
NGC
$306
Greysheet News
Science Meets 1776: New Whitman Book Reopens the Mystery of the Continental Dollar
10/28/2026
Whitman Prestige™ Becomes One of the Hobby's Fastest-Growing Premium Coin Album Lines
More than 125 album variations now span 25+ series and collections, as Whitman expands the line with a modern U.S. Type Collection, new Proof Set albums, digital registry sets, and My First Album™ starter collections for the next generation of collectors.
10/23/2026
Historic 1792 Half Disme Brings Record $2.93 Million, Leads Heritage's GACC Numismatic Auctions Above $19 Million
Newly discovered 1867-S Half Eagle also shatters previous auction record in $10.665 million U.S. coins event; 1934 $10,000 Federal Reserve Note Leads $8.7 million U.S. currency auction.
10/15/2026
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