So-Called Dollars refer to a series of commemorative medals and tokens that were produced in the United States, primarily during the 19th and early 20th centuries. The term originated from pieces that resembled dollar coins but were not authorized U.S. currency. One notable example is the So-Called Dollar from 1887, which commemorates the 1887 International Monetary Conference. These items are often sought after by collectors for their historical significance and unique designs, reflecting U.S. events, personalities, or institutions.