Here is a Zeiss Ikon Super Ikonta C, code 531/2, in very good condition. There are some marks from wear and use on the black paint and leather. The shutter sounds correct at all speeds but has not been checked for accuracy, 1 sec seems slow. The focusing and rangefinder work ok. The viewfinder image is cloudy, and the lens has some light haze. It is sold as a collectible, as with any camera of this age, a service would be recommended before use with film.