Most common sheller around here, perhaps 1/2 the farms owned one back in the day.
It sounds like it would be valuable for a parts machine, the bevel gears and such.
We used to shell with my uncle, he owned the sheller, then in the 1970's got our own for $900, was in good ready to use shape.
Bought one in the last decade, sounds like yours, for $75 for a parts machine. Don't think I've plled a part off it yet, but the last 2 years corn dried down so increadable fast, I didn't get but a couple wagons of ear corn made.
Scrap iron prices have gone up, so might be worth $100 in the shape it's in, not sure what a reconditioned one would be worth any more, see them sell for scrap all the time sadly...