This original postcard is from the 1933 Century Of Progress (Chicago World's Fair) which was held in Chicago. It is in very good condition with slightly worn corners and the front features the "S.S. Christopher Columbus En Route Chicago-Milwaukee". The reverse side features a postcard format, which is unused and a paragraph that says "This great Steel Steamship makes a 170 mile trip along Illinois and Wisconsin shores, plying between Chicago & Milwaukee" and measures approx. 5 1/2" x 3 1/2".