UPDATE: Dan’s got a good thread related these trucks at the Old Willys Forum. The 1956 June-July issue of Willys News included a reference to this vehicle.
I suspect this brochure, Form W-F56-1, was published in 1956, so I’ll republish it here as we are attempting to move through the 1956 brochure year. My guess is that this eight page brochure was a lunch brochure for the light duty rescue truck.
One great thing is that it has a list of all the equipment that is supposed to come with truck, plus a picture showing how it was organized in the back.