LOMO OKS2-35-1 2.8/35mm lens for 35mm movie camera, #910006
The lens was made at LOMO in 1991 (s/n is 910006). Excellent condition with minor signs of use and few cleaning marks on front glass.
Mount is unknown to me. Seems to be purposed for some non-reflex camera.
FFD is long enough to adapt it for some hybrid camera like Sony NEX, but bit short for reflex cameras.
Great lens for some amateur to step into world of 35mm movie cameras lenses - low price due to unknown mount.