Legendary early 'Hawkeye' f/1.2 lens from my late fathers collection. Serial number 2002670 with original caps. 1960s I think.

I'm no expert so please see photos for condition and please feel free to ask questions. I can provide more photos on request. From what I can see its in good used condition. I can't see any fungal blooms. The outer glass has a some very very fine hardly noticeable light scratches from normal use. The focus ring moves smoothly. The aperture ring clicks and moves nicely but the aperture blades do not move so its currently stuck on 1.2. I'm guessing most owners will only use 1.2 anyway or? The lens has probably not been used for a number of years.

Thanks for looking