Collectible coins include various types such as commemorative coins, bullion coins, and historical pieces. In the United States, the Two and a Half Dollars, also known as "Quarter Eagles," feature designs like the American Liberty gold coin. The 1866 edition from the San Francisco Mint is particularly significant, as it represents a transition in American coinage and has numismatic value due to its rarity and historical context. Collectors often seek such coins for their artistic design, historical importance, and potential investment value.

Item Denomination Series Year Mint
1866-S $2 1/2 $2.50 (Two and a Half Dollars) American Liberty Gold 1866 San Fransciso