USA 1 Half Dollar 1893 Columbian commemorative Exposition. Averse legend: UNITED STATES OF AMERICA / * COLUMBIAN HALF DOLLAR *. Averse description: portrait on the right of Christopher Columbus. Reverse legend: WORLD'D COLUMBIAN EXPOSITION CHICAGO / * 1893 *. Reverse description: the Santa Maria sailboat and two hemispheres with date 14-92. Silver. KM-117