This lens was made at LOMO in 1989, so it is one of the latest LOMO lenses (production was stopped 1-2 years later).
Optical blocks OKS2-100-2 were purposed for 70mm film originally, but some of them have been housed for OCT-19 mount of 35mm cine cameras (Konvas and Kinor).
So, the lens uses central part of the image therefore (where aberrations are less).
Multicoated glass. Excellent condition. The lens seem to be unused.
OCT-19 mount has short behind-the-flange part, so it will work with any OCT-19 adapter, I believe.
Installed follow focus gear has 50 pitch (for Kinor), so modification will be necessary if you want to use it with 32 pitch follow focus.
Price is relatively high, I know. But these lenses are much more rare than common OKS1-100-1 lenses, and quality is superior. Soviet cine industry strongly recommended to switch from OKS1-100-1 to OKS2-100-2 if possible, and there is your chance to follow this good advice :-)