Collectible coins and medals encompass a diverse group of numismatic items, often distinguished by their historical significance, design, and purpose. In the United States, coins typically refer to legal tender, while medals are non-circulating pieces, often issued to commemorate events or achievements. The Agricultural Mechanical Society Award Medals, such as the Harkness medal from 1888, are examples of these commemorative pieces, awarded for contributions in agricultural and mechanical fields. These medals are prized by collectors for their artistic design and historical context, representing advancements and recognitions within specific societal sectors during their time of issuance.

Item Denomination Series Year Mint
1888-- (Unknown) Agricultural & Mechanical Society Award Medals - Harkness Other / Varied Agricultural & Mechanical Society Award Medals - Harkness 1888 Unknown