So-Called Dollars are a type of commemorative medallion or token, primarily produced in the United States, that often celebrate specific events, individuals, or places. They usually have a diameter of about one dollar but do not have the legal tender status of U.S. coins. The term "So-Called Dollars" originated from a book published by Harold H. Lahn in 1941, which cataloged these items. The 1853 So-Called Dollars, often associated with events like the California Gold Rush or the 1853 World’s Fair, are particularly sought after by collectors and feature intricate designs and historical significance.