The Liberty Head Double Eagle is a gold coin minted in the United States from 1849 to 1907, featuring a design by engraver Augustus Saint-Gaudens. The 20-dollar denomination, which is equivalent to $20, is significant for its gold content and historical value. The coin minted in 1878 in San Francisco is particularly sought after by collectors due to its rarity and condition. The obverse showcases the Liberty portrait, while the reverse displays an eagle in flight. This series is recognized for its contribution to American numismatics and gold currency.

Item Denomination Series Year Mint
1878-S (San Francisco) Liberty Head Double Eagles $20 $20 (Twenty Dollars) Liberty Head Double Eagles $20 1878 San Francisco