Offered for sale is a collection of 12 United States Mint Proof Coin Sets, spanning selected years from 1975 through 1992. These attractive collector sets contain specially struck proof coins with mirrored finishes and detailed designs. Each set is presented in its original U. Mint hard plastic display holder, with the original outer packaging shown in the photographs. Included in This 12-Set Collection. San Francisco Mint proof coinage. Original Mint plastic holders. Original dated outer packaging. Kennedy half dollars, Washington quarters, Roosevelt dimes, Jefferson nickels, and Lincoln cents. Standard clad proof coinage; these are not silver proof sets. Coins have not been professionally graded. The coins have been well preserved within their protective Mint holders. The original outer packaging shows varying degrees of age-related wear, including scuffing, creasing, edge wear, and minor discoloration. Please carefully review the photographs for the exact condition of each set. Mint Proof Sets and their accompanying original packaging as pictured. A great collection for beginning and experienced coin collectors, U. Mint enthusiasts, or anyone interested in American numismatic history.