[David_Hayward (RIP)]

Shane, good point. All I can say is that the allocation and then retention of WD numbers continued until say 1941 at which point a new system prevailed...from studies as regards soft-skins to a certain contract Demand # and perhaps no more. I will look up my Chevrolet contracts but I have a shrewd idea at about which point the system may have stopped. Basically I think the system changed from allocation and then sale of vehicles and parts to Commonwealth countries to a new system which mean that each countries allocated their own numbers simply because the purchasing system had gone onto a new basis with Defence Aid coming in and then Lend-Lease [that allowed US supplies of Canadian vehicles for example].

The WD number of course simplified parts ordering but I suspect that the system changed at the cut-off to ordering by Demand number.