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 but has a stain on the back of the postcard and the front features the "Agricultural Building". The reverse side features a postcard format, which is unused and a paragraph that says "This unique structure of modern architectural design is located on Northerly Island near the famous Adler Planetarium. It is nearly a city block long & shaped somewhat like a three-toothed key. The building will house exhibits of food manufacturers & displays dramatizing the progress of agriculture" and measures approx. 5 1/2" x 3 1/2".