Collectible coins and medals encompass a wide range of items, including official currency minted by governments, commemorative pieces, and awards. In the United States, coins have historical significance and can be collected based on various criteria such as rarity, age, and condition. Specific types include medals awarded for achievements, like the Agricultural Mechanical Society Award Medals. The Harkness medal from 1888 represents an acknowledgment of agricultural achievements and may be sought after for its historical context and design, despite the specific details of its creator being unknown. Collectors often value such pieces for their cultural and artistic significance in the context of American history.

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