Collectible coins can include various types such as Proof Sets, which are specially minted coins that feature a high level of detail and a mirror-like finish. In the United States, collectible coins often encompass denominations such as 1 cent (1c) and 50 cents (50c), which may come from specific years, such as 1940. These coins are sought after by collectors for their historical significance, rarity, and aesthetic qualities. Proof Sets from particular years often include coins that are less commonly found in circulation, enhancing their value and desirability among numismatists.

Item Denomination Series Year Mint
1940 1c-50c Proof Set 1c-50c Proof Sets 1940 Philadelphia