Made by Chicago Aerial Instruments for the military, these are used and need cleaning. Made for the military Type 18 military periscope system camera. Accepts 70mm film. Measures 8-1/2" x 3-5/8" x 4-5/16". Military NSN #6760-01-102-3956. Original cost: $16,818.00!! Sorry, but we are not allowed to ship these outside the United States.