Collectible coins encompass a wide range of types, including commemorative issues, error coins, and patterns or trial coins. The United States Mint has produced various collectible coins, with the 1 One Cent Penny being a notable example. Patterns or trial coins, such as those from 1942, were produced to test designs and compositions before mass production. These items are often sought after by numismatists for their rarity and historical significance.

Item Denomination Series Year Mint
United States of America 1942 N/A Patterns & Trial Coins 1¢ 1¢ (One Cent, Penny) Patterns & Trial Coins 1942 N/A