2/35mm lens OKS8-35-1, OCT-19 mount for Konvas
The lens was made at famous LOMO factory in 1978 (#780796).
It is purposed for 35mm film movie cameras, but covers larger area, including full still image frame (24x36mm). Back focus is quite short, so it will not work with reflex DSLR cameras. But it works fine with hybrid digital cameras.
The lens has so called OCT-19 mount for Konvas-2M. You may adapt it to your camera, probably.
Used condition. Mechanics is fine. Glass is free of fungus and scratches. But there is some cleaning marks and some dust inside, so cleaning may be necessary.