Did you count the ones with sources too, or just the ones without?

So is the real question here whether your grandma ever had to toss anything from that icebox, or did folks back then just eat whatever was left because wasting food wasn't an option? That part fascinates me more than the fridge itself, since our whole idea of "is this still good" seems pretty new. Curious what she'd say if you asked her.

14 hours on a Pentax shutter is brutal, I feel that pain. I had a similar thing on a K1000 where the mirror was hanging just enough to drag on the foam and it looked exactly like a slow speed issue. Took me two teardowns before I checked the mirror box screws. That tip about the hinge plate is good to know though. Next time I get a shutter problem that won't quit I'm checking those screws first.