Collectible coins can encompass a wide variety of categories, including coins from different historical periods, regions, and types. One notable type is the trial coin, which is often created to test designs or minting processes. In 1864, the United States Mint in Philadelphia produced trial coins, which served as experimental pieces for coinage designs. These trial coins can be highly sought after by collectors due to their rarity and significance in numismatic history.

Item Denomination Series Year Mint
1864-P (Philadelphia) Patterns & Trial Coins Other / Varied Patterns & Trial Coins 1864 Philadelphia
1864-P (Philadelphia) Patterns & Trial Coins Other / Varied Patterns & Trial Coins 1864 Philadelphia