World War II vintage training camera. Using 35mm film this is half-frame camera, 18 x 24mm format. 75 mm f4.5 Konica Hexar lens.
Numerous photographs could be shot in succession with the Japanese machine gun camera. This World War II - vintage military camera was used for target practice, with film substituting for bullets. The size, shape, and wieght are comparable to an actual machine gun of this era.