NGC MS65 CAC - 1893 Columbian Expo Commemorative Half Dollar. The first commemorative coins that were issued by the United States were minted for the 1892-93 World's Columbian Exposition, held in Chicago. This exposition was celebrating the 400th anniversary of the Landing of Columbus in the New World. Really nice coin and very inexpensive! Beautiful original toning with rainbow toning around the rim on the Reverse! It also has a Certified Acceptance Corporation sticker on the slab!