This Zorki 4K is a soviet-made coupled Rangefinder camera from 1974. The 4K has a stainless steel horizontal focal plane shutter capable of 1 sec – 1/1000 sec, Bulb and X/Flash-sync of 1/30sec. There’s also a variable self-timer (about 10-15 seconds).
The lens is a Jupiter-8 50mm f2, six elements in three groups, a Carl Zeiss Jena Sonnar copy known for its beautiful rendering and softness at the edges.
This particular camera and lens are in full working order, great condition, clean throughout, and have been film tested. Sample images can be seen in the gallery here.