So-Called Dollars are a type of commemorative medallion or coin produced primarily for collectors rather than for general circulation. The term specifically refers to pieces that were issued to commemorate events, people, or organizations and were often made in the style of U.S. currency. The 1925 edition includes various designs that celebrate significant moments in American history. These pieces typically feature imagery relevant to their themes, and while they are not official U.S. currency, they hold collectible value among numismatists.