Great find, I figured it had to be from some kind of brochure but didn't know where to look first. It does look very much look like an altered Ford, the mirrors with the 3 stripes fit too. Interestingly, the contents of the book show real trucks but this one on the cover must have been changed just to avoid the obvious or to be creative.
The design would have been pretty attractive for a mass produced truck at that time. Maybe aside from the grill pattern that leads... nowhere, or rather half there.
Thanks atom!