Kowa 81mm F1.2 lense in a a decent shape with great optics I can see some dust specs micro hairline scratches and wipe marks. these are industrial lenses with a use for lab work, scientific work etc. Lens does show some wear.lens doesn’t have any focusing helicoid or iris. 

These days people are somehow adapting these high resolution lenses on Digital Mirrorless cameras but that needs lot of expertise and mechanical work.