Nikon professional camera set

Once in a lifetime collectors item! Well looked after, single owner Nikon professional camera set consisting of 2 Nikon cameras with various lenses. To the best of my knowledge in good working order. The flash has been tested and is working, but I am not sure it was part of the original set. 

The last two pictures are from a separate Nikkor lense that is included in this deal and compatible with the cameras.

The carry case is still the original, but the inside foam had to be replaced at one stage and is a DIY foam version.

My father-in-law bought it in the sixties as a new set. While I am not into photography, I will try and answer any specific questions with his help.