This early model has the same raised rim around the viewfinder and rangefinder windows as the early Zorki 4a. The lens is Jupiter 8 and the camera has the shutter speed 1/1000, although its not printed on the speed scale, it just has a dot. Speed numbers are stamped, not painted
59-29475 Juhani
59-49072 napchop
59-58000 okynek
60-26907 napchop
60-33159 napchop