Collectible coins, particularly from the United States, can vary significantly in type, rarity, and value. The 1-cent (1c) coin, commonly known as the penny, has various designs and minting years that appeal to collectors. Proof sets, such as those issued by the San Francisco Mint in 2000, are specially produced coins that feature a polished, mirror-like finish, intended for collectors rather than general circulation. These sets often include multiple denominations, and their limited production can enhance their collectible value.

Item Denomination Series Year Mint
2000-S 1c-$1 Proof Set 10 Coins 1c-$1 Proof Sets 2000 San Francisco