Okay, this is the camera on the cover of Warhol by Galella:That's Great.
The camera was the first to use a lithium battery. Weirdly, it was not replaceable in the normal, you take it out and put one in.
The batteries were seen as semi-permanent. You have to unscrew the battery compartment and rip out the old batteries. There are no provisions for providing contact to new batteries. You have to pull out a solder.
I don't have one. But I will. And when I'm done, I'll modify it so it will far simpler to replace the batteries.
Historical note, two boxes of these cameras were found in Warhol's house immediately after he died.
They were documented in photographs taken of his dining room.