Your probably right RZ only the Gov would buy something like that.I'm betting ex fire truck, Possibly US forest service, I saw a similar '53 Ford COE in the Elgin, Oregon (I think) area years ago. It was a county Volunteer rig.
Going back to things that ride rough, this thing would kill one's kidney's and create and bad case of the piles.. You would have to wear a seat belt to keepThat passenger door almost looks chrome in the first picture the way the paint blistered! You sure know how to sniff them out! I've always liked the fat fendered Fords no matter the version.