Collectible coins encompass a variety of categories, including historical issues, error coins, and commemoratives. In the United States, one notable collectible is the 1 One Cent Penny, particularly the unique 1858 patterns and trial coins that showcase the design and proposed modifications prior to official minting. These coins are often sought after by collectors for their rarity, artistic merit, and significance in numismatic history.

Item Denomination Series Year Mint
United States of America 1858 Philadelphia Patterns & Trial Coins 1¢ 1¢ (One Cent, Penny) Patterns & Trial Coins 1858 Philadelphia