This item is for ONE 90% Silver Proof Kennedy Half Dollar from the San Francisco Mint with the dates being our choice from 1992 to 2014. The San Francisco Mint started striking proof coins in 1968 and in 1992 the U.S. Mint brought back the 90% silver coins in Proof Sets for the first time since 1964. The 90% silver proof is the lowest mintage coin released by the Mint each year. Buy up to 10 and get up to 10 different years!