1892-1893 U.S. Columbian Exposition Commemorative Silver Half Dollar One U.S. silver Columbian Exposition commemorative half dollar, dated either 1892 or 1893 Struck by the U.S. Mint to raise funds for the Columbian Exposition, AKA The Chicago World's Fair Commemorates the 400th anniversary of Christopher Columbus' arrival in the New World Average circulated condition - see product pictures for examples 30.6mm diameter, 12.5g weight, .900 fine silver