The 1894 So-Called Dollar is a notable collectible coin that was created as a souvenir for the 1893 World's Columbian Exposition in Chicago. Despite its name, it is not a lawful currency but rather a medal struck to commemorate the event. The term "So-Called Dollar" refers to a specific category of tokens and medals that resemble dollars in size and design but lack official status as currency. This particular piece is highly sought after by collectors due to its historical significance and limited mintage, making it a standout in the realm of U.S. numismatics.