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 "Electrical Building, Chicago World's Fair". The reverse side features a postcard format, which is unused and a paragraph that says "Showing a part of the Electrical Group, which consists of three sections located on Northerly Island. Housed in the Electrical Group is Radio Hall where may be seen radios from the earliest stages to the present day receiving sets" and measures approx. 5 1/2" x 3 1/2".