If the data plates are original to the jeep, then this was likely manufactured in 1946.
“1947 Willys Jeep for sale. [cj-2a] Jeep has all of the running gears/etc, and has already been bead blasted and primed. The machine has a few small spots of rust, but is no rust bucket by any means.”
https://littlerock.craigslist.org/cto/d/1947-willys-jeep/6323830615.html