So-Called Dollars are a series of medals and tokens issued primarily in the United States to commemorate events and individuals, often resembling a dollar coin in size and design. The term "So-Called Dollar" originated from the book "So-Called Dollars" by Hibler and Kappen, which catalogs these items, including those minted around 1906. The 1 One Dollar pieces within this category are not official U.S. currency but are highly sought after by collectors for their historical significance and unique designs.