Collectible coins encompass a wide range of numismatic items, including historical coins, commemorative pieces, and medals. The American Institute Medals, such as those awarded to notable individuals like Harkness in 1877, represent significant achievements and contributions in various fields. These medals are often made from precious metals and can be highly sought after by collectors, particularly when they are rare or bear historical significance. The value of such collectibles can depend on factors like condition, rarity, and the significance of the honoree.

Item Denomination Series Year Mint
(1877-1897) Hark-190 American Institute Bronze Ms Other / Varied American Institute Medals - Harkness 1877 Unknown