This original postcard is from the 1933 Century Of Progress (Chicago World's Fair) which was held in Chicago. It is in excellent condition & slightly yellowed. The front of the postcard features the "General Motors Building". The reverse side features a postcard format, which is unused and a paragraph that says "Visited by thousands daily. Perhaps the most interesting feature is the complete assembly of automobiles from chassis frame to gas in the gasoline tank. The building is 454 feet in length" and measures approx. 5 1/2" x 3 1/2".