So-Called Dollars are a specific type of commemorative medallion that originated in the United States, particularly during the mid-20th century. The term "So-Called Dollar" refers to pieces that mimic the dollar coin size and are typically produced for events, anniversaries, or expositions rather than for general circulation. The 1954 So-Called Dollars were part of a series that celebrated various American cultural and historical milestones. They were often made of non-precious metals and serve as collectible pieces rather than monetary currency.