Mills Extraordinaire, 25 Cent Coin Operated Console Slot MachinE Mills Novelty Co. Chicago. The Mills Extrordinary Silent Bell was made for the 1933 Chicago Worlds Fair, whose motto was the "Century of Progress". The city scape design was a modern introduction to the gaming business, and is one of the only Art Deco machines in existancE Maroon in color. Very good working condition. 10 1/2 X 60 X 15 inches, comes with keys.