Collectible coins encompass a variety of categories, including commemorative coins, bullion coins, and error coins. Specific to the United States, the 1 One Cent Penny has a rich history, with notable examples including patterns and trial coins produced in Philadelphia. The year 1873 is significant for the introduction of various changes in minting practices and designs, marking it as an important year for numismatics. Patterns and trial coins from this period are especially sought after by collectors for their rarity and historical significance.

Item Denomination Series Year Mint
United States of America 1873 Philadelphia Patterns & Trial Coins 1¢ 1¢ (One Cent, Penny) Patterns & Trial Coins 1873 Philadelphia