Collectible coins and medals are items sought after by numismatists and collectors for their historical significance, artistic value, or rarity. The United States has a rich tradition of issuing commemorative coins and medals, including awards for agricultural and mechanical achievements. The Agricultural Mechanical Society Award Medal, such as the one awarded to Harkness in 1884, often represents specific contributions to agricultural practice or innovation. Such medals typically feature intricate designs and inscriptions that reflect the society's values or accomplishments during that period.

Item Denomination Series Year Mint
1884-- (Unknown) Agricultural & Mechanical Society Award Medals - Harkness Other / Varied Agricultural & Mechanical Society Award Medals - Harkness 1884 Unknown