Something to be aware of: The stamp with "NWMP" enclosed in a crescent border, as pictured above, was in fact a Winchester Factory Stamp .... i.e. applied by the manufacturer on NWMP contract carbines before shipment. If that precise mark appears on any other type of firearm it is spurious!
It is my understanding that the original stamp surfaced a few years ago and ended up being sold to someone ..... after which, the mark started appearing on various "newly discovered" NWMP-issue firearms. Quite laughable on anything other than a Winchester ... at least to someone who knows the truth.
A good example of such a "funny gun" is the Martini-Metford cavalry carbine I own which has this exact stamp on the stock! (Especially 'funny' in view of the fact that there was no known use of Martin-Metford cavalry carbines by the NWMP .....)