Thanks, Doug!
On Thursday, we removed the decorative/protective cover over all the deadbolt components and learned how the hand wrench “sets” the lock. And we figured out how the sprockets on the timers released the mechanism so as to unlock the safe door. Next Thursday (the day a friend and I volunteer), we’re going to clean up the entire inside of the door, etc.
However, we still don’t understand how the timers are wound. We don’t see any “key hole” like most clocks of that era have. We can easily open the timer door and have access to the timer faces and “hands.” And they move with a little effort.
I will take some better photos of the inside of the door (without the cover) and of the timers. But it will be Thursday night before I can post anything.
Thanks very much for your help!
Kent