This original postcard is from the 1933 Century Of Progress (Chicago World's Fair) which was held in Chicago. It is in excellent condition and the front features the "Admiral Byrd's Polar Ship, Chicago World's Fair". The reverse side features a postcard format, which is unused and a paragraph that says "The Famous ship which braved the ice packs and the Antarctic winter to carry Byrd and his crew to Little America" and measures approx. 3 1/2" x 5 1/2".