Collectible coins include a variety of categories such as numismatic coins, commemorative coins, and medals. The United States of America produces numerous collectible pieces that commemorate historical events, figures, or societal achievements. Agricultural medals, such as the Mechanical Society Award Medals from the Harkness family, often celebrate advancements in agricultural practices or machinery. The specific medal from 1887, associated with the Harkness name, reflects the recognition of achievements within the agricultural mechanical field during that era, although details on the exact provenance may be unknown.

Item Denomination Series Year Mint
1887-- (Unknown) Agricultural & Mechanical Society Award Medals - Harkness Other / Varied Agricultural & Mechanical Society Award Medals - Harkness 1887 Unknown