IF it is 10th Brigade, Canadianicon Field Artillery, it will be interesting as that was a WWI unit. This carbine (I suspect a carbine based on the stamps) is marked with the M&D which is the Canadian Militia and Defence stamp usually seen on the late Martini's and the Long Lees, LMC, LEC. You don't see it on the Short Lee's. I wasn't aware that the CFA went overseas with carbines, but I suppose it is possible. I think there was a Britishicon Columbia Garrison Artillery or some such thing--I have a Martini marked with that regimental mark. That might be more likely based on dates?

Ed