Collectible coins and medals, particularly in the context of the United States, include a variety of types that can range from currency to commemorative pieces. Agricultural medals often celebrate achievements in farming and agricultural technology, while mechanical society award medals recognize contributions in engineering and technical fields. The Harkness medal from 1903 is an example of such award medals, created to honor individuals for their accomplishments in these areas. Collectors value these items based on historical significance, rarity, condition, and provenance.

Item Denomination Series Year Mint
1903-- (Unknown) Agricultural & Mechanical Society Award Medals - Harkness Other / Varied Agricultural & Mechanical Society Award Medals - Harkness 1903 Unknown