Collectible coins can encompass a range of categories, including trial coins, which are experimental pieces struck to test minting techniques or designs. One notable example is the 1873 trial coins produced in Philadelphia, designed to assess the feasibility of new minting processes or alterations in coin design. These trial coins often have unique characteristics, making them highly sought after by collectors due to their historical significance and limited production runs. Collectors value such pieces not only for their rarity but also for the insight they provide into the evolution of coinage in the United States.

Item Denomination Series Year Mint
1873-P (Philadelphia) Patterns & Trial Coins Other / Varied Patterns & Trial Coins 1873 Philadelphia
1873-P (Philadelphia) Patterns & Trial Coins Other / Varied Patterns & Trial Coins 1873 Philadelphia