I just picked up one of these for $6 at a local thrift shop. This particular model was manufactured from approximately 1934 to 1942.
The clock is in pretty good shape but I don't know if it runs. The cord has been snipped flush with the case.
Here's the problem: I can't open up the case without removing the knurled adjusting knob for the clock's hands. That knob won't unscrew off of the rod even with using two pairs of pliers. Any suggestions? Is it a reverse thread? I've tried both directions but am starting to do too much damage to the components.
If it just needs a rotor, I've got a spare I can cook up on a light bulb if I can ever get the case removed.
Here's a picture. It's from the web, not of my actual clock. Measures appx 8" x 7"

The clock is in pretty good shape but I don't know if it runs. The cord has been snipped flush with the case.
Here's the problem: I can't open up the case without removing the knurled adjusting knob for the clock's hands. That knob won't unscrew off of the rod even with using two pairs of pliers. Any suggestions? Is it a reverse thread? I've tried both directions but am starting to do too much damage to the components.
If it just needs a rotor, I've got a spare I can cook up on a light bulb if I can ever get the case removed.
Here's a picture. It's from the web, not of my actual clock. Measures appx 8" x 7"
