Marking identification on 42 WLC

[Marc Belanger]

All.
I would appreciate you support to solve mistery on a 1941 WLC (s/n 42WLC1807). The bike is almost in batlefield condition. Found in Europe lately. The CDN sensus No on tanks could be legible twice with one and two inches high letters+numbers....CC 4-201745...the number codification do not match with Bruce Palmer info and listing of the liberator.be website

In addition, the number 43 in large size is painted on each fendrer. There is a D13 code in a rectangle on the rear fender, just over the tail lamps.

Is anyone could associate these markings to any units? Any information available?

Thanks. Marc Belanger