Kelly CJ-5 Hardtop Farmersville, IL $205

If this is from a 1948, it must not have fit it very well. Looks like it is possibly a Kelly Bonanza III hardtop from the late 1960s.

https://springfieldil.craigslist.org/pts/d/farmersville-willys-hard-top-doors/7237630551.html

"from a 1948
*** barn find ***
doors - window glass
hatch & corners - glass
rear sides - plexiglass"