Collectible coins include various types such as commemorative coins, limited editions, and proof coins. The United States Quarter, specifically the Washington Quarter, features George Washington and has been produced since 1932. The 1974 San Francisco Mint produced special versions of the Washington Quarter, which can be found in both circulation and proof sets, making them of particular interest to collectors due to their lower mintage and unique characteristics. Collectors often seek out these coins based on rarity, condition, and historical significance.

Item Denomination Series Year Mint
1974-S (San Francisco) Washington Quarters 25¢ (Twenty Five Cents, Quarter) Washington Quarters 1974 San Francisco