Looks like a Koenig hardtop for a CJ-5 or M-38A1.
https://northernwi.craigslist.org/pts/d/hazelhurst-willys-jeep-window-half-cab/7233337488.html
“The cab is solid on top and sides the rear of the cab has rust , the doors are both there as shown and are not rusted and the hinges work too glass is good in the doors and the 3 cab windows. The roof and front header are solid the 2 posts, that the doors mt to are ok, just screw or braze them onto the roof and screw them to the sides of the fender.”