So much for the incessant change of lenses or zooming that we do today, as those were with a fixed lens (on one model though, you could change the dual lens for another set)!
It's the Vietnam war that brought in many people's mind the multi-purposedness of the SLR or "single" lens reflex with changeable lenses...

So we'll get to see them next Friday ? :-)

"What can I do, What can I write, Against the fall of Night". A.E. Housman