Collectible coins and medals encompass a wide range of items, including those issued by governments and private entities. In the United States, collectible coins often feature significant historical figures, events, or national symbols. Medals, such as the Agricultural Mechanical Society Award Medals from organizations like Harkness in 1875, are awarded for achievements in various fields and may vary in design and composition. These collectibles appeal to numismatists for their historical significance, artistic merit, and potential investment value.

Item Denomination Series Year Mint
1875-- (Unknown) Agricultural & Mechanical Society Award Medals - Harkness Other / Varied Agricultural & Mechanical Society Award Medals - Harkness 1875 Unknown