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 "Chicago North Western Line". The reverse side features a postcard format, which is unused and a paragraph that says "With over 10,000 miles of perfectly equipped railway extending into nine middle western states, the Chicago & North Western Railway provides a passenger & freight service west, north and northwest of Chicago that is efficient, modern & complete" and measures approx. 5 1/2" x 3 1/2".