United States, 20 Dollars, 1910 ("Roman" Finish Proof)

United States Mint, Philadelphia. Obverse: Liberty with feather headdress, facing left. Reverse: Denomination and date within cereal wreath. The United States Mint experimented with a number of innovative surface treatments for its proof coinage between 1905 and 1915. These included matte and sandblast surfaces that reflected light back in unusual ways. They also included the application of a "Roman" finish, making the surfaces of gold coins look more golden, and more mellow. These experimental surfaces were applied to test new ideas regarding what would work and what would not. The surfaces were also placed there so that the coins that bore them became "special," and could be sold to collectors at a premium.
Currently not on view
Object Name
date made
U.S. Mint. Philadelphia
Saint-Gaudens, Augustus
Physical Description
gold (overall metal)
0 (overall die axis)
0 (overall die axis measurement)
struck (overall production method)
overall: dia. 34.3 mm; wt. 33.418 g
place of issue
United States
ID Number
catalog number
accession number
Coins, Currency and Medals
United States Double Eagle
See more items in
Political History: National Numismatic Collection
United States Double Eagle
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Government Transfer: US DOTT, USM
Publication title
Glossary of Coins and Currency Terms
Publication URL
Additional Media

Visitor Comments

Add a comment about this object

**Please read before submitting the form**

Have a comment or question about this object to share with the community? Please use the form below. Approved comments will appear on this page and may receive a museum response (but we can't promise). Please note that we generally cannot answer questions about your own artifacts or comment on their value, rarity, or collectibility.

Have a question about anything else, or would you prefer a personal response? Please visit our FAQ or contact page.

Personal information will not be shared or result in unsolicited e-mail. See our privacy policy.

Enter the characters shown in the image.