Found this 1948 Chevrolet? Ideas of what it is?

[BenjaminChevy]

Hi everyone,

Recently got this from an estate sale. Have yet to pick it up. I believe it is a late 40s or early 50s Chevrolet 3300?. Dual wheels, split windshield. The most unusual thing about it is that it has a large generator built into the bed. Appears to be a factory job. Generator brand starts with a "W" but is not a westinghouse, don't remember the name off hand. Any information about this vehicle would be appreciated. Has a solid body and appears very complete and original. Still not sure if I'm gonna sell it or keep it. Located in NE Connecticut. Would really like to know if these came with a generator from factory, and if the truck is worth anything to anyone.