The 1891-S Liberty Head $20 gold pieces were struck over 115 years ago at the San Francisco Mint. These handsome coins bear James B. Longacre`s famous portrait of Liberty wearing a coronet inscribed liberty. The fascinating reverse depicts an eagle with a shield. The motto in god we trust is encircled with stars above the eagle, and the denomination is stated along the lower edge as twenty dollars. Get this San Francisco favorite today.