I knew this wasn't a WWII jeep because it has a tailgate, but even though I have a 48 CJ2A I'm not up on all the details that differentiate the CJ2A, CJ3A, M38 etc. so I ran this by the Throbbing Brain that is thecj2apage.com and this is what they came up with.
"Hard to say Stan but i'll wager...