Collectible coins encompass a wide range of items, including patterns, trial coins, and historical mintages. In the context of the United States, trial coins are experimental pieces struck by the U.S. Mint to test design and production techniques prior to mass production. The year 1839 is notable for producing several important trial coins, as it marked significant developments in U.S. coinage, including various design changes and the introduction of new denominations. Collectors often seek out these items due to their rarity and historical significance, making them highly sought after in the numismatic community.

Item Denomination Series Year Mint
1839-P (Philadelphia) Patterns & Trial Coins Other / Varied Patterns & Trial Coins 1839 Philadelphia