Whitman Expo
Stack's Bowers Galleries, legendary rare coin auction firm, is proud to announce that records were shattered in their September 3, 2026, offering of the Mack C. Chase Collection.
No G6 photos on record yet — showing auction lots of this item in other grades
Coin Value History
1820 50c Square Base 2, No Knob, O-106 G6
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1820 Capped Bust Half Dollar. O-106. Rarity-1. Square Base No Knob 2, Large Date. VG-8 (PCGS).
VG8
PCGS
$192
1820 50C Square 2, Large Date, No Knob, O-106, R.2, Fine 12 PCGS. CDN: $130 Whsle. Bid for NGC/PCGS Fine 12....
F12
PCGS
$268
1820 50C Square Base 2, Large Date, No Knob, O-106, R.2 -- Cleaned -- ANACS Details. VF20. ...
VF20
ANACS
$139
1820 Capped Bust Half Dollar. O-106. Rarity-2. Square Base No Knob 2, Large Date. VF-20 (PCGS).
VF20
PCGS
$264
1820 Capped Bust Half Dollar. O-106. Rarity-1. Square Base No Knob 2, Large Date. VF-30 (ANACS).
VF30
ANACS
$192
1820 50C Square 2, Large Date, No Knob, O-106, R.2, VF35 PCGS. CDN: $340 Whsle. Bid for NGC/PCGS VF35....
VF35
PCGS
$354
1820 50c Square Base 2, Large Date, No Knob, O-106, R.1, VF35 PCGS. PCGS Population (1/18). NGC Census: (0/0). ...
VF35
PCGS
$282
1820 50C Square Base 2, Large Date, No Knob, O-106, R.2, XF40 PCGS. PCGS Population: (9/19). NGC Census: (5/13). XF40. ...
XF40
PCGS
$540
1820 50c Square Base 2, Large Date, No Knob, O-106, R.1, XF40 PCGS. PCGS Population: (8/17). NGC Census: (4/10). XF40. ...
XF40
PCGS
$384
1820 50C Square Base 2, Large Date, No Knob, O-106, R.2, XF45 PCGS. PCGS Population: (4/18 and 0/1+). NGC Census: (2/11 and...
XF45
PCGS
$552
1820 50C Square Base 2, Large Date, No Knob, O-106, R.2, AU53 PCGS. PCGS Population: 5 in 53, 13 finer (10/25). CDN: $900 W...
AU53
PCGS
$1,098
1820 50C Square Base 2, Large Date, No Knob, O-106, R.2, AU53 PCGS....
AU53
PCGS
$1,440
1820 50C Square Base 2, Large Date, No Knob, O-106, R.2, MS63 PCGS....
MS63
PCGS
$13,200
1820 50C Square Base 2, Large Date, No Knob, O-106, R.2, XF45 PCGS. PCGS Population: (4/18). NGC Census: (2/11). CDN: $525 ...
XF45
PCGS
$720
1820 Capped Bust Half Dollar. O-106. Rarity-2. Square Base No Knob 2, Large Date. MS-65 PL (NGC).
MS65
NGC
$66,000
1820 50C Square Base 2, Large Date, No Knob, O-106, R.2, AU58 PCGS....
AU58
PCGS
$3,360
1820 50C Square Base 2, Large Date, No Knob, O-106, R.2, MS61 NGC. ...
MS61
NGC
$3,030
1820 50c Square Base 2, Large Date, No Knob, O-106, R.1, MS62 PCGS. ...
MS62
PCGS
$3,240
1820 50c Square Base 2, Large Date, No Knob, O-106, R.1, AU55 PCGS. PCGS Population: (2/8 and 0/1+). NGC Census: (1/4 and 0...
AU55
PCGS
$2,040
1820 50c Square Base 2, Large Date, No Knob, O-106, R.1, MS65 PCGS. ...
MS65
PCGS
$42,001
1820 50c Square Base 2, Large Date, No Knob, O-106, R.1, AU58 PCGS. ...
AU58
PCGS
$2,350
1820 50c Square Base 2, Large Date, No Knob, O-106, R.1, MS60 NGC. Gold CAC. ...
MS60
NGC
$6,462
1820 50c Square Base 2, Large Date, No Knob, O-106, R.1, AU55 PCGS. CAC. ...
AU55
PCGS
$4,935
1820 50c Square Base 2, Large Date, No Knob, O-106, R.1, AU50 PCGS. CAC. ...
AU50
PCGS
$1,058
1820 Capped Bust Half Dollar. O-106. Rarity-1. Square Base No Knob 2, Large Date. AU-50 (PCGS).
AU50
PCGS
$728
Greysheet News
Mack C. Chase Collection of Walking Liberty Half Dollars Realizes Nearly $2.5 Million in Stack's Bowers Galleries' 2026 Global Showcase Auction
9/25/2026
Kevin Lipton Opens Impressive Rare Coins, Fine Art & Antiques Gallery in Beverly Hills
The Lipton Gallery is displaying a $3 million Augustus Saint-Gaudens statue that inspired the famous, similar design for Double Eagle gold coins.
9/24/2026
Consumer Advocate Mike Fuljenz Wins NLG's Newsletter Award
His free weekly newsletter offers insights on the coin and metals markets, and consumer education.
9/15/2026
Events
Heritage Auctions: US Coins Tuesday & Wednesday Select Auction
Location: Heritage Auctions
Wednesday, July 1, 2026
Heritage Auctions: World & Ancient Coins Wednesday & Thursday Select Auction
Location: Heritage Auctions
Thursday, July 2, 2026
