Collectible coins encompass various types, including proofs, which are specially minted coins characterized by their high-quality finish and mirror-like surfaces. The United States Mint produces Proof Sets that typically include one of each circulating coin denomination for a given year. For instance, the 1992 Proof Set, minted in San Francisco, features coins struck with a unique process that enhances their visual appeal, making them particularly sought after by collectors. Such sets often include the 1-cent coin (1c) along with other denominations, showcasing annual designs and commemorative elements.

Item Denomination Series Year Mint
1992-S 1c-$1 Prestige Proof Set 1c-$1 Proof Sets 1992 San Francisco