I have a 1942 WLA that I have restored. Every nut, bolt, clamp, spring, bracket, thread ect is genuine, but people tell me that my bike is not original, it is customized. I
re-laced the wheels with 16 inch rims with balloon tyres and full valence guards. Painted it Black and cream with gold pin stripping. I licensed it in Australia about 6 years ago. They asked me for a chassis/frame number, and OK, if it didn't have one, then provide proof. In the Operation and maintenance manual TM 10-1175, page number 6 has information on Engine (serial) number. A photocopy of this page was presented to the Australian licensing department as documentary proof of this fact.
These military bikes do not have a frame number that I am aware of. They may have a number stamped here and there, but they do not have a specific
FRAME NUMBER. Regards Keith