Collectible coins encompass a wide range of types, including commemorative, proof, and trial coins. The 1911 trial coins produced in Philadelphia showcase unique patterns, often serving as prototypes for future currency designs. These trial coins are especially sought after by collectors due to their rarity and the historical significance of their production in the context of the United States Mint's operations. The artistry and variations in designs make them a fascinating subject within the numismatic community.

Item Denomination Series Year Mint
1911-P (Philadelphia) Patterns & Trial Coins Other / Varied Patterns & Trial Coins 1911 Philadelphia