LOMO lens OKS8-35-1 2/35mm, T/2.2, Konvas OCT-18 mount, #750511
The lens was made at LOMO in 1975 (#750511). F=35mm, f/2, T/2.2.
Mount is so called OCT-18 - for Russian 35mm film movie cameras Konvas-1M.
You can use it on other cameras if you have corresponding adapter.
Aperture works fine.
Glass is clean and clear, but rear element is covered with tiny cleaning marks.