...I forgot to mention, the rolls of un-developed films in the cameras date back 35 years...

...!
...probably rolls of clear plastic by now...

...!
LOL...!
I think used, un-processed film has quite a short storage life..!
Paul.
You never know.. sometimes the frames towards the middle of the roll are useable, as the shelf-life of exposed film has a lot to do with exposure to air and humidity. And if they are pinkish or whatever, having got them in digital form already, you can tweak them to the point where they're not so bad. Can't cite an example offhand, but I've heard of very old film being developed with acceptable results (acceptable meaning you can see what it is, at least).
Myself, I'd be dying to try it out of sheer curiosity, esp. if I couldn't recall what I'd shot!! Even if they wind up a little funky-looking, there might be some priceless shots in there...
Fozzer's Time Capsule...

!!
See the Seventies, come to life!!
But on second thought:
Probably mostly pictures of food and fat women...
