Inevitably, if a bike saw post-war service then any tank markings are likely to be post-war. A light or "Cobalt" blue background indicates Royal Engineers. What is the number ?
Tf it doesn't have any white lines above, below or diagonally, it pretty much has to be post-war. In the mid-war schedules, 150 - 189 were on green and issued to the Royal Armoured Corps.
The purpose of Arm of Service serials was to confuse the enemy. Unfortunately, these days they only confuse old vehicle owners. :grimacing:
