Collectible coins encompass various types, including numismatic coins, commemoratives, and bullion. In the United States, coins such as the 1 cent (1c) and 50 cent (50c) have significant collector value, especially in pristine condition. Proof sets, like those minted in 1997, are specially produced with a higher quality finish, offering coins that exhibit a mirror-like surface and exceptional detail. Such sets are popular among collectors for their aesthetic appeal and limited production runs.

Item Denomination Series Year Mint
1997-S 1c-50c Proof Set 1c-50c Proof Sets 1997 San Francisco