Mercury Dimes, officially known as Winged Liberty Head Dimes, were minted in the United States from 1916 to 1945. The 1917 Mercury Dime, particularly from the San Francisco mint (S mintmark), is notable among collectors for its lower mintage and specific design features. These dimes are composed of 90% silver and have a face value of ten cents, making them popular for both numismatic and investment purposes. Collectors often seek out the 1917-S due to its historical significance and appeal within the broader Mercury Dime series.

Item Denomination Series Year Mint
1917-S (San Francisco) Mercury Dimes 10¢ (Ten Cents, Dime) Mercury Dimes 1917 San Francisco