Collectible coins can include various categories such as patterns, trial coins, and circulating issues. The United States One Cent Penny, first minted in 1793, has undergone numerous design changes. Patterns and trial coins, like those produced in Philadelphia in 1850, are experimental issues created to test new designs or technologies before full-scale production. These coins often hold significant value to collectors due to their rarity and historical significance.

Item Denomination Series Year Mint
United States of America 1850 Philadelphia Patterns & Trial Coins 1¢ 1¢ (One Cent, Penny) Patterns & Trial Coins 1850 Philadelphia