Collectible coins include various types, among which are So Called Half Dollars, which are commemorative tokens often issued to celebrate significant events or institutions. Heraldic Art Medals are another form of collectible coin that feature designs inspired by heraldry and are often created in limited runs. The 1972 coinage in the United States may include special editions or minting errors that can enhance their collectible value. The term "Unknown" may refer to coins with uncertain origins or provenance, which can intrigue collectors but may also affect their marketability. Collecting these items often involves understanding their historical context, rarity, and condition to evaluate their worth effectively.

Item Denomination Series Year Mint
1972 Silver Yellowstone 100th Sc50c Ms Other / Varied So-Called Half Dollars & Heraldic Art Medals 1972 Unknown