The pictures in these 2 albums depict a body style that I am considering for our early 1930 Ford AA 1-1/2 ton truck.
At first glance it looks like a grain body with a cover. But it's actually a mobile office and living quarters. It opens in a similar fashion to a pop-up camper, with the drop wings at the sides, instead of front to back (obviously), a hard top and the entrance in the rear.
This type of body was used during the late '20's and early '30's by the engineers, surveyors and supervisors of the road crews working to construct the first highways across America. They housed a bed, drafting table (that converted into a second bed), dining area and sink.
Note that there is a "Kozy Kamp" logo on the side of the body. I took a little "artisitic" liberty here, as I can't honestly say that I know for sure that these bodies were made by Kozy Kamp. It's possible that they may have been built by Auto-Kamp in Saginaw, Michigan. But the rusted out shell of the one that I saw many years ago in Arizona (or was it New Mexico) sure looked mechanically like the early 1930 pop-up campers made by Kozy Kamp.