Does this imply that the arrowC mark was not used before 1947? If that is the case, I have a document relating to Canadianicon No4T rifles marked with the distinctive Canadian acceptance mark to the effect that '....... they be returned to Canadian Ordnance authorities at the earliest opportunity following the ceassation of hostilities'. I don't recall what the distinctive mark was but there is only one!

Or is this a case, like the WD arrow which was in use for many many years, but was formalised on a certain date.

I saw this C-Arrow mark on Canadian made Bren tripods captured in South Vietnam. They were marked on the captured enemy stores labels as UKicon Made at the ROF Cardiff. Alas, not so. Canadian made. Or is my memory tricking me.........?