So what am I bid
I have a 23 page document from the Department of Munitions and Supply, Automotive Production Branch, Directorate of Engineering. The document is emtitled "Vehicle Nomenclature, Codes and Serial Numbers" and gives the complete breakdown of body, cab, chassis and vehicle codes. In addition it explains how the plates were to be marked and where they were to be placed, e.g. "For such vehicles as are shipped in partly-knocked down condition, with the cab unmounted, the plate, together with the attaching stock, will be inserted in a cotton bag and securely wired to the accelerator pedal. Attaching holes will be provided in the cab."
Rather than mail copies to everyone I will make this into a pdf file and ask Sunray to post on-line as a downloadable file.
In the meantime I will look up individual codes as requested.