The stencilled style of serial number on the front guard looks to be the same as the ex-Dutch bike. Would this not point towards contract C7370 ? It would make these two C4192139 and C4192249.
The contract totalled 526 machines and comprised 167 350cc, 147 standard 500cc and 600cc sv and 212 600cc Dutch Pattern.
The metal tank badges and valanced front guard both look correct for the 1940 model year civilian range.
