Collector coins can include a variety of types, including regular issue coins, commemorative coins, proofs, and trial coins. In the United States, trial coins, such as those produced in 1945 at the Philadelphia Mint, were created to test new designs or striking techniques. These coins often feature experimental patterns and are sought after by collectors due to their unique characteristics and historical significance. The Philadelphia Mint has played a crucial role in the production of both regular and special release coins throughout American history.

Item Denomination Series Year Mint
1945-P (Philadelphia) Patterns & Trial Coins Other / Varied Patterns & Trial Coins 1945 Philadelphia