Collectible coins encompass a wide array of categories, including patterns, trial coins, and various historical pieces. The 1874 trial coins from Philadelphia are a notable example, as they served as experimental pieces during the design process for official coinage. These coins are highly sought after by collectors due to their limited mintage and historical significance within the context of United States numismatics.

Item Denomination Series Year Mint
1874-P (Philadelphia) Patterns & Trial Coins Other / Varied Patterns & Trial Coins 1874 Philadelphia