Collectible coins include a variety of types, such as commemorative coins, proof coins, and minted coins from various historical periods. The United States Mint has produced numerous collectible half dollars, including the 50-cent coins, often featuring designs that celebrate significant American events or figures. The 2005 San Francisco mint marks indicate that these coins were struck at the San Francisco Mint, often associated with higher quality and collectible appeal due to limited mintage and special finishes. Collectors often seek these specific attributes in half dollar rolls from this era.

Item Denomination Series Year Mint
2005-S 50c Roll 20 Coins Clad 50c Roll Half Dollars 2005 San Francisco