Since the case on this clock was in really bad shape, I disassembled the case, stripped off the old paint, and cleaned off the rust. I then painted all of it with black enamel paint and reassembled it...
The case had gold detail, which turned out to be gold paint. After the black paint dried, I tried to add the gold detail back. I did the painting with a toothpick, but that wasn't even fine enough. I might redo the paint.
The case has a hinged glass door, but one of the hinges has been broken off.
The door hinge isn't quite aligned with the case one, which will take a little thought to realign it.
I turned a new hinge from brass, in anticipation of aligning and attaching it to the case to replace the missing one.