Thats way too cool to part out.
If it's not your cup of tea, probably some AKer will want it. In fact, I think someone posted a while back wanting a 'real' farm radio, in other words a radio that runs directly from a car battery, not 1.5v and 90v like you usually see.
They can be converted to ac, and a lot of them were. That could be messy.
On the other hand I dont think buying or building a 6v supply to run this thing on would be cost prohibitive. I wonder how much current it draws? Hmm...
Assuming it has a vibrator power supply, there is a "buffer capacitor" that should be replaced. I don't think there is anything to be gained by bringing the power up slowly like a 120v set. I doubt the vibrator would like it.
I think back in the day you would have more than one battery, and could have got it charged in town. Some people I think had a windmill hooked to a generator. Also some farms had weird power. 37.5v DC I think. It wouldnt have been too hard to cut this back to charge batteries.
Normal recapping probably needs to be done. Congratulations, I think you've found a very unusual beast.
John