Chicago 1933-1934 Century of Progress Exposition

A Century of Progress International Exposition, also known as the 1933-1934 Chicago World's Fair, opened on May 27, 1933, and closed on October 31, 1934. Its main theme was technological innovation.  Held during the height of the Art Deco design period, many of the cinderella stamps, postcards, and ephemera associated with the fair feature this type of design.