It’s former Civil Air Patrol complete with number and logo.

https://tampa.craigslist.org/hdo/bar/d/hernando-military-jeep-m38/7028045692.html

“1951 Military Jeep M38 — I purchased this Jeep from the Civil Air Patrol back in 1983 — Painted blue by the Civil Air Patrol — Army Green is coming thru as the paint is peeling on the inside of the hood — I had it in storage for 36 years — Motor is out for a new clutch — I have purchased the clutch, pressure plate, & throw out bearing — open to a trade on GM SUV or Jeeps — GM pickups — Fishing Boat”