Collectible coins refer to coins that are sought after by enthusiasts and investors due to their rarity, historical significance, condition, or unique features. In the United States, notable examples include coins featuring figures such as Abraham Lincoln, who is prominently featured on the Lincoln penny, first issued in 1909. The year 1864 is significant in U.S. numismatics as it marks the transition of the penny from a bronze composition to a predominantly zinc composition. Collectors may also focus on coins that have unique or unknown origins, contributing to their appeal and value in the marketplace.

Item Denomination Series Year Mint
1864-Dated K-878, Ar Abraham Lincoln 24mm Ms Other / Varied Abraham Lincoln - King 1864 Unknown