Collectible coins encompass various types, including patterns, trial coins, and denomination-specific pieces such as the One Cent Penny. Patterns are experimental strikes created to test new designs or technologies, and trial coins are often mint-produced examples not intended for circulation. The One Cent Penny, particularly those minted in 1818, holds significance in numismatics for its rarity and historical context within United States coinage. Collectors often seek these coins for their unique attributes and contribution to the nation's monetary heritage.

Item Denomination Series Year Mint
United States of America 1818 N/A Patterns & Trial Coins 1¢ 1¢ (One Cent, Penny) Patterns & Trial Coins 1818 N/A