Collectible coins encompass various categories, including So-Called Half Dollars, which are not official U.S. currency but are struck as souvenirs or commemorative pieces. These coins often feature unique designs and serve as a representation of significant events or themes. Heraldic Art Medals are another form of collectible that showcases artistic renditions of heraldic symbols and emblems. The year 1971 may indicate a notable release or event related to these coins, though specifics can vary. The classification "Unknown" may refer to coins whose provenance or value have not been established or documented in mainstream references.

Item Denomination Series Year Mint
1971 Silver Santa Fe Trail Sesqui Sc50c Ms Other / Varied So-Called Half Dollars & Heraldic Art Medals 1971 Unknown