Collectible coins, particularly those from the United States, encompass a variety of types including the 1 One Cent Penny. Notable examples include patterns and trial coins, which were often created to test designs before mass production. The 1865 trial coins produced in Philadelphia are significant due to their rarity and historical context, making them highly sought after by collectors. These coins can demonstrate unique features that differentiate them from regular issue coins, often reflecting artistic innovations or changes in minting processes.

Item Denomination Series Year Mint
United States of America 1865 Philadelphia Patterns & Trial Coins 1¢ 1¢ (One Cent, Penny) Patterns & Trial Coins 1865 Philadelphia