So-Called Dollars are a type of numismatic item that were produced primarily for commemorative purposes and often represent events, occasions, or notable figures rather than serving as actual currency. The Hibler-Kappen catalog is a well-regarded reference that categorizes these medals, which include a variety of tokens, medals, and other non-legal tender coins. The 1861 So-Called Dollar, which commemorates a significant event related to the United States, exemplifies the type's artistic design and historical relevance, appealing to collectors due to its rarity and context within American history.