One of the M-38A1s, the one with the binging-like top, is described as an M-38.

https://www.facebook.com/marketplace/item/1290622164675314

“1st set of pictures- Vintage 1953 Willis Military Jeep. Model: M38 A1. Runs on a 24V system with original generator, Jeep has been taken care of and is still operational. 4WD still works but has some minor issues in the front end area. Also needs some work done to the gearbox for the steering. 2nd Jeep- 1950 Willis Military Jeep. Model: M38. Jeep has been started and engine operates smooth once turned over. Has been converted over to 12V system and has an alternator in it. This one was originally bought as a parts jeep but was not stripped apart for any. Needs body work and Seats. Both Jeeps are sold as a pair MPU.”