I know this thing is a "mutt" - just trying to figure a few things out!

To start with, it is titled as a 1947, but has 1950 doors (one turn down handle, one push button, wing vents). It has a WB of 125", 8 lug wheels, what looks like a factory mount for a second gas tank under the bed (and the tank), the bed is just short of 8', and five window cab.

Any ideas? No serial tag....it is "around here somewhere", but not on the truck.....