Collectible coins, particularly those issued in the United States, can include various types such as patterns and trial coins. Patterns are experimental pieces created to test new designs or compositions before official minting, while trial coins are struck to assess the feasibility of production. In 1860, several trial coins were produced, showcasing innovative designs and materials that were not officially adopted. These coins are highly sought after by collectors due to their historical significance and rarity.

Item Denomination Series Year Mint
1860-P (Philadelphia) Patterns & Trial Coins Other / Varied Patterns & Trial Coins 1860 Philadelphia