So-Called Dollars are a category of commemorative medals, often made from silver or other metals, created to celebrate events, people, or places. The term originated from the 19th century, when these pieces were issued as souvenirs but often resembled the size and weight of the silver dollar. The 1911 So-Called Dollar, often tied to the Panama-Pacific International Exposition, features designs commemorating the event, and collectors value these pieces for their historical significance and connection to American numismatics.