Collectible coins include various types, such as patterns, trial coins, and currency from specific periods. The United States has produced numerous collectible coins, including unique trial coins that were created to test designs and minting processes. One notable example is a series from 1874, which features trial pieces that were not intended for circulation but are highly sought after by collectors for their historical significance and rarity. Such coins reflect the evolving design and technology of the U.S. Mint during the 19th century.

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