Collectible coins encompass various types, including patterns, trial coins, and other unique issues significant to numismatics. Trial coins, also known as pattern coins, were typically produced to test new designs or manufacturing methods before a final version was approved for circulation. The year 1879 is notable for several trial coins struck by the United States Mint, designed to explore concepts for future currency. Such coins often hold great value due to their limited availability and historical importance in the evolution of U.S. coinage.

Item Denomination Series Year Mint
1879-P (Philadelphia) Patterns & Trial Coins Other / Varied Patterns & Trial Coins 1879 Philadelphia