So-Called Dollars refer to a specific category of commemorative medallions and tokens issued primarily in the United States, often relating to events or themes rather than official currency. These items are typically made of various metals and exhibit unique designs, reflecting cultural or historical significance. The Hibler and Kappen catalog is a reference work detailing these collectibles, with volume updates listing different pieces, including those around significant dates like 1980. The 1 One Dollar denomination may represent specific editions or themes within the broader scope of So-Called Dollars, appealing to collectors interested in numismatic history.