Collectible coins often include various types such as proof coins, which are specially struck with a high-quality finish, often featuring frosted designs against a mirrored background. In the United States, the 1-cent coin, commonly known as the penny, has a long history and has undergone several design changes since its inception. Proof sets are annual collections released by the U.S. Mint, showcasing coins minted for collectors, with the 2023 set being produced in San Francisco, known for its quality minting processes. Collectors often seek these sets for their limited availability and intricate design details.

Item Denomination Series Year Mint
2023-S 1c-$1 Proof Set 10 Coins 1c-$1 Proof Sets 2023 San Francisco