Collectible coins, such as the United States 1 Cent Penny, encompass various types, including patterns and trial coins. Patterns are experimental pieces struck to gauge public or governmental response to new designs before adoption, while trial coins are produced to test minting techniques. The 1864 one-cent penny, notable for its design changes and historical significance, exemplifies the evolution of U.S. coinage, making it a sought-after item among collectors.

Item Denomination Series Year Mint
United States of America 1864 N/A Patterns & Trial Coins 1¢ 1¢ (One Cent, Penny) Patterns & Trial Coins 1864 N/A