Collectible coins include various types such as commemorative coins, bullion coins, and mint sets. In the United States, the quarter is a popular denomination, particularly the Washington Quarter, which has been in circulation since 1932. The 1993 Washington Quarter, minted in San Francisco, is notable for its S mint mark and is part of a series that can be valuable to collectors, especially in high grades or in proof condition. Collectors often pursue these coins based on rarity, historical significance, and condition.

Item Denomination Series Year Mint
1993-S (San Francisco) Washington Quarters 25¢ (Twenty Five Cents, Quarter) Washington Quarters 1993 San Francisco