ALL NEW!!! - 2027 Blue Books Now Available
Order Your Copy Today!
View Image Gallery Similar item Image for 1820 50c Square Base 2, Knob 2 AU55
us
1820 50c Square Base 2, Knob 2 AU55
Auction lot photos of this item graded AU55
Coin Value History
1820 50c Square Base 2, Knob 2 AU55
Thank you to our sponsors!
Go check them out!
eBay ICG CAC Heritage Auctions Stacks Bowers Auctions David Lawrence Rare Coins Whitman US Coins and Jewelry
1820 50c Square Base 2, Knob 2 MS

AU55

1820 50c Square Base 2, Knob 2

Greysheet & CPG® Price Guide
+0.0%
Greysheet (2026)
$1,234
Wholesale
Subscribe to View Log In
Price History
+0.0%
CPG (2026)
$1,234
Retail
Subscribe to View Log In
Price History

Auction Prices

1 recent AU55 sale, then the closest other results
See all
1820 50C Square Base 2, Large Date, Knob, O-105a, R.3, AU55 PCGS....
AU55 PCGS
1820 50C Square Base 2, Large Date, Knob, O-105a, R.3, AU55 PCGS....
$2,040
Sold 1/14/2025
Heritage Auctions
1820 Capped Bust Half Dollar. O-105. Rarity-1. Square Base No Knob 2, Large Date. AU-53 (PCGS).
AU53 PCGS
1820 Capped Bust Half Dollar. O-105. Rarity-1. Square Base No Knob 2, Large Date. AU-53 (PCGS).
$1,260
Sold 4/2/2025
Stack’s Bowers Galleries
1820 50C Square Base 2, Large Date, Knob 2, O-105, R.1, AU58 NGC. CDN: $2,600 Whsle. Bid for NGC/PCGS AU58. Mintage 751,122...
AU58 NGC
1820 50C Square Base 2, Large Date, Knob 2, O-105, R.1, AU58 NGC. CDN: $2,600 Whsle. Bid for NGC/PCGS AU58. Mintage 751,122...
$2,440
Sold 7/27/2026
Heritage Auctions
1820 50C Square Base 2, Large Date, Knob 2, O-105, R.1, AU50 PCGS. PCGS Population: 8 in 50, 16 finer (10/25). CDN: $1,000 ...
AU50 PCGS
1820 50C Square Base 2, Large Date, Knob 2, O-105, R.1, AU50 PCGS. PCGS Population: 8 in 50, 16 finer (10/25). CDN: $1,000 ...
$1,068
Sold 1/12/2026
Heritage Auctions
1820 50C Square Base Knob 2, Large Date MS60 NGC. O-105, R.1. Draped in rich orange-gold and forest-green colors, this well...
MS60 NGC
$1,035
Sold 5/7/2005
Heritage Auctions
1820 50C Square Base 2, Large Date, Knob, O-105, R.1, MS61 PCGS. CAC....
MS61 PCGS CAC
1820 50C Square Base 2, Large Date, Knob, O-105, R.1, MS61 PCGS. CAC.... CAC approved
$7,500
Sold 8/12/2024
Heritage Auctions
1820 50C Square Base 2, Large Date, Knob 2, O-105, R.1, MS62 PCGS....
MS62 PCGS
1820 50C Square Base 2, Large Date, Knob 2, O-105, R.1, MS62 PCGS....
$6,000
Sold 11/13/2025
Heritage Auctions
1820 Capped Bust Half Dollar. O-105. Rarity-1. Die State 105.1. Square Base Knob 2, Large Date. MS-63 (ANACS). OH.
MS63 ANACS
$5,520
Sold 8/13/2024
Stack’s Bowers Galleries
1820 50C Square Base 2, Large Date, Knob, O-104, R.3, MS64 NGC. ...
MS64 NGC
1820 50C Square Base 2, Large Date, Knob, O-104, R.3, MS64 NGC. ...
$10,370
Sold 9/4/2026
Heritage Auctions
1820 50C Square Base 2, Large Date, Knob, O-104, R.3, MS64 NGC. ...
MS64 NGC
1820 50C Square Base 2, Large Date, Knob, O-104, R.3, MS64 NGC. ...
$10,500
Sold 10/6/2022
Heritage Auctions
Subscribe to View Log In

View more data, info, and visualizations. Get access to retail and wholesale pricing as well as auction data.

Auction Prices, Other Grades

Recent public sale records for this item in other grades
See all
1820 Capped Bust Half Dollar. O-105a. Rarity-3. Square Base Knob 2, Large Date. Fine-15 (PCGS).
F15 PCGS
1820 Capped Bust Half Dollar. O-105a. Rarity-3. Square Base Knob 2, Large Date. Fine-15 (PCGS).
$342
Sold 8/5/2026
Stack’s Bowers Galleries
1820 50C Square Base 2, Large Date, Knob 2, O-105, R.1, VF30 PCGS. CDN: $290 Whsle. Bid for NGC/PCGS VF30. ...
VF30 PCGS
1820 50C Square Base 2, Large Date, Knob 2, O-105, R.1, VF30 PCGS. CDN: $290 Whsle. Bid for NGC/PCGS VF30. ...
$382
Sold 7/27/2026
Heritage Auctions
1820 50C Square Base 2, Large Date, Knob 2, O-105, R.1, XF40 PCGS. CAC. CDN: $540 Whsle. Bid for NGC/PCGS XF40. ...
XF40 PCGS CAC
1820 50C Square Base 2, Large Date, Knob 2, O-105, R.1, XF40 PCGS. CAC. CDN: $540 Whsle. Bid for NGC/PCGS XF40. ... CAC approved
$824
Sold 7/27/2026
Heritage Auctions
1820 50C Square Base 2, Large Date, Knob, O-105a, R.3, VF35 PCGS. Ex: Manhattan Collection. CDN: $367.50 Whsle. Bid for NGC...
VF35 PCGS
1820 50C Square Base 2, Large Date, Knob, O-105a, R.3, VF35 PCGS. Ex: Manhattan Collection. CDN: $367.50 Whsle. Bid for NGC...
$476
Sold 7/27/2026
Heritage Auctions
1820 50C Square Base 2, Large Date, Knob 2, O-105, R.1, Fine 15 PCGS. CDN: $175 Whsle. Bid for NGC/PCGS Fine 15. ...
F15 PCGS
1820 50C Square Base 2, Large Date, Knob 2, O-105, R.1, Fine 15 PCGS. CDN: $175 Whsle. Bid for NGC/PCGS Fine 15. ...
$268
Sold 7/27/2026
Heritage Auctions
1820 Capped Bust Half Dollar. O-105. Rarity-1. Square Base Knob 2, Large Date. EF Details--Environmental Damage (PCGS).
1820 Capped Bust Half Dollar. O-105. Rarity-1. Square Base Knob 2, Large Date. EF Details--Environmental Damage (PCGS).
$512
Sold 6/3/2026
Stack’s Bowers Galleries
1820 Capped Bust Half Dollar. O-104. Rarity-3. Square Base Knob 2, Large Date. VF-20 (PCGS).
VF20 PCGS
1820 Capped Bust Half Dollar. O-104. Rarity-3. Square Base Knob 2, Large Date. VF-20 (PCGS).
$293
Sold 4/6/2026
Stack’s Bowers Galleries
1820 50C Square Base 2, Large Date, Knob, O-105a, R.3, XF45 PCGS. PCGS Population: 1 in 45, 6 finer (10/25). CDN: $656.25 W...
XF45 PCGS
1820 50C Square Base 2, Large Date, Knob, O-105a, R.3, XF45 PCGS. PCGS Population: 1 in 45, 6 finer (10/25). CDN: $656.25 W...
$702
Sold 1/12/2026
Heritage Auctions
1820 50C Square Base 2, Large Date, Knob, O-105, R.1, VF30 NGC. NGC Census: (4/34)....
VF30 NGC
1820 50C Square Base 2, Large Date, Knob, O-105, R.1, VF30 NGC. NGC Census: (4/34)....
$360
Sold 10/7/2024
Heritage Auctions
1820 50C Square Base 2, Large Date, Knob, O-105, R.1, VF25 NGC. NGC Census: (2/38). PCGS Population: (1/37). CDN: $240 Whsl...
VF25 NGC
1820 50C Square Base 2, Large Date, Knob, O-105, R.1, VF25 NGC. NGC Census: (2/38). PCGS Population: (1/37). CDN: $240 Whsl...
$516
Sold 10/2/2023
Heritage Auctions
1820 50C Square Base 2, Large Date, Knob, O-104, R.3, XF40 PCGS. PCGS Population: (5/13 and 0/0+). NGC Census: (1/9 and 0/0...
XF40 PCGS
1820 50C Square Base 2, Large Date, Knob, O-104, R.3, XF40 PCGS. PCGS Population: (5/13 and 0/0+). NGC Census: (1/9 and 0/0...
$780
Sold 9/25/2023
Heritage Auctions
1820 Capped Bust Half Dollar. O-104. Rarity-4+. Square Base Knob 2, Large Date. Good-6 (PCGS).
G6 PCGS
1820 Capped Bust Half Dollar. O-104. Rarity-4+. Square Base Knob 2, Large Date. Good-6 (PCGS).
$132
Sold 3/24/2020
Stack’s Bowers Galleries
1820 50C Square Base Knob 2, Large Date VG10 PCGS. PCGS Population (1/135). NGC Census: (0/0). ...
VG10 PCGS
1820 50C Square Base Knob 2, Large Date VG10 PCGS. PCGS Population (1/135). NGC Census: (0/0). ...
$123
Sold 11/5/2013
Heritage Auctions
1820 50C Square Base Knob 2, Large Date Fine 12 ANACS. O-105. NGC Census: (0/0). PCGS Population (1/116). (#6122)...
F12 ANACS
1820 50C Square Base Knob 2, Large Date Fine 12 ANACS. O-105. NGC Census: (0/0). PCGS Population (1/116). (#6122)...
$184
Sold 5/1/2012
Heritage Auctions
1820 50C Large Date, Curl Base 2 VG8 NGC. O-108....
VG8 NGC
1820 50C Large Date, Curl Base 2 VG8 NGC. O-108....
$79
Sold 1/10/2012
Heritage Auctions
Subscribe to View Log In

View more data, info, and visualizations. Get access to retail and wholesale pricing as well as auction data.

Greysheet News

Kevin Lipton Opens Impressive Rare Coins, Fine Art & Antiques Gallery in Beverly Hills
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.

By Kevin Lipton 9/24/2026
Consumer Advocate Mike Fuljenz Wins NLG's Newsletter Award
Consumer Advocate Mike Fuljenz Wins NLG's Newsletter Award

His free weekly newsletter offers insights on the coin and metals markets, and consumer education.

By Mike Fuljenz 9/15/2026
Incredible Rarities Shatter Records Amid Furious Bidding at Stack's Bowers Galleries' Summer 2026 Global Showcase Rarities Night Session
Incredible Rarities Shatter Records Amid Furious Bidding at Stack's Bowers Galleries' Summer 2026 Global Showcase Rarities Night Session

Stack's Bowers Galleries, one of the world's largest and most prestigious rare coin auction houses, is proud to announce record breaking results from the Rarities Night session of its annual Summer Global Showcase Auction.

By Stack’s Bowers Galleries 9/15/2026
See all

Events

Heritage Auctions: US Coins Tuesday & Wednesday Select Auction
Heritage Auctions: US Coins Tuesday & Wednesday Select Auction Location: Heritage Auctions
Wednesday, July 1, 2026
Heritage Auctions: World & Ancient Coins Wednesday & Thursday Select Auction
Heritage Auctions: World & Ancient Coins Wednesday & Thursday Select Auction Location: Heritage Auctions
Thursday, July 2, 2026
DLRC Weekly Auctions
DLRC Weekly Auctions Location: DAVID LAWRENCE RARE COINS
Sunday, July 5, 2026
See all