Sounds like the seller is a dealer.

https://dallas.craigslist.org/dal/ctd/d/1942-ford-gpw-jeep/6683328119.html

“1942 Ford GPW Military Jeep. VIN 30319. Odometer reads 43,018 miles. 134ci 4 cylinder engine / 3 speed manual trans. Four Wheel Drive. The engine block is non-original. Engine runs fine. Dana 25 front differential, Dana 27 rear differential. Has been converted to 12 volt electrical system. Solid body. Will need some minor mechanical repair to be a driver. Great project.

Yes – WE TAKE TRADES. If you have a trade-in, please send photos of your trade, detailed information about your trade and the price you`re looking to get for your trade.
If you do not include this with your trade offer I will not respond.”