LOMO OKS1-35-1 2/35mm lens, OCT-18 Konvas mount, #710111
The lens was made at famous LOMO factory in 1971 (#710111).
It is purposed for 35mm film movie cameras, but covers bit larger area. 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-18 mount for turret Konvas. You can use it on other cameras is you have corresponding adapter.
Used condition. Aperture ring moves smoothly. Glass is clean and clear.