Collectible coins include various types, such as proof sets, which are specially minted coins characterized by their high quality and mirror-like finishes. Proof sets from the United States, particularly those produced in San Francisco, often feature coins like the 1-cent (1c) coin, with 2014 being a notable year for certain releases. These sets are sought after by collectors due to their limited mintage and exceptional craftsmanship, making them valuable additions to numismatic collections.

Item Denomination Series Year Mint
2014-S 1c-$1 Proof Set 14 Coins 1c-$1 Proof Sets 2014 San Francisco