Large stereoscopic camera Monobloc Simplified, made in France in 1922 by Jeanneret, Paris. The serial number of the camera is MS9691. It is designed to work with plates of 6 x 13 cms, and has two stigmatic 4.5 / 75 mm lenses. It uses a pneumatic trigger that works. As you see, it is in a superb condition. Superb.