I suspect this is an aftermarket CJ body atop a military chassis. The body has civilian aspects, but the rear cargo area has the boxes necessary to allow the vertical shocks seen on MBs and GPWs.
https://www.facebook.com/marketplace/item/479049607788556/
“Yellow & Black 1942 Jeep Willy. L134 go devil engine * Been stored in our garage * covered * ready for outdoor fun. Many recent upgrades (mirrors, brakes, soft top, rail & more.) Easy to tow ~ fun to drive!”