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).
f/2.8, T/3-16.
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 :-)