GAUTHIER A.C.G. PRONTOR CAMERA SHUTTER, KAMERA VERSCHLUSS WORKS

Shutter works perfect. Speed accurate. Could test the electrical system.
Shows no signs of prior use. All functions smoothly and as it should. For which camera it is is unclear.Shutter comes in original makers box. Diameter of the shutter front part is 47mm. Thread at the front is 15mm, at the rear a 8mm hole. Aperture works smooth and blades show no wear and are clean. Speed and aperture ring operate smoothly. Light block foam is getting soft.