World's Fair in a Nutshell. A Century of Progress. Gale Specialty Co. Chicago. 1932.World's Fair in a Nutshell. A Century of Progress. Gale Specialty Co. Chicago. 1932. Concertina strip of 40, alternating photographs and text, printed to one side only (a pull out accordion booklet of pictures and descriptions of important architectural works from the fair). 25 x 20 mm. Oily spot for about 10 pages in the middle but just a bit discolouring the paper. Housed in a real walnut shell, measures approx 40 mm., sewn on one side, with red