Listed as a 1951, this jeep has a replacement tub. It does not appear to have an M-38 frame; rather, maybe a CJ-3A frame with the PTO bar removed? This seems to be a mix of parts.
https://tricities.craigslist.org/cto/d/creston-1951-willys-jeep/6988525248.html
“Jeep has no rust. Is a Navy-issued jeep with plaques. Has granny gear. Needs battery and two new front seats. Call for milage and full VIN number (too long more than 17 characters). Jeep has original toolbox with tools, gas can on rear and full canvas top.”