UPDATE: No one can remember seeing another grille like this and, so far, there’s no evidence of another grille like it. Per the comments, I’d agree this was likely home modded (and pretty well done at that).
Has an overdrive.
https://slo.craigslist.org/cto/d/santa-margarita-1954-willis-jeep-cj3b/7142256135.html
“1954 Willis Jeep CJ3B. Period correct Chevy 283 conversion from the 60’s or 70’s. This is a great example of a Willis that was converted years ago and is a survivor. Runs good and only has a couple areas of rust to add to the patina. Stock 3 speed with the original overdrive (rare) and working 4×4. New upholstery. Needs some wiring but otherwise road worthy. Current non-op in hand. Asking $5000 or trade.”