Metal Composition: 92% Gold - 8% Silver and Copper
Diameter: 25 mm
Mass / Weight: 8.75 grams
What This Coin Looks Like (Obverse, Reverse, Mint Mark Location, Special Features, etc.): There were a few major varieties of the 1820 $5 Gold Capped Bust Gold Half Eagle. Depicted above is the Curl Base 2 - Small Letters variety (Source of example image is courtesy of Heritage Auction Galleries).
There were two major varieties dealing with the styling of the number "2" in the 1820 date on the obverse of the coin. One variety featured a curled or curved base on the number "2" while the other have a flat square base. The differences between the Curl Base 2 vs Square Base 2 is depicted below in the example comparison image:
The Curl Base 2 variety also features two sub varieties dealing with the size of the lettering on the reverse of the coin. One variety features smaller letters in the words "UNITED STATES OF AMERICA" while the other variety features slightly larger letters. The best way to identify the varieties is to look at the letter "T". In the Large Letters variety - all of the letter T's are noticeably larger and also features a distinct and defective "pock mark" at the bottom of each letter "T". The difference between the Small Letters vs Large Letters varieties is depicted below in the example comparison image:
Coin Value Chart: Typical Coin Prices, Values and Worth in USD based on Grade/Condition. Numismatic portion of the values last updated February 2026, precious metal portion of the values is updated live!