Westmount Rifles were a Militia Regm't from Montreal. Became The Royal Montreal Regiment on 1 April 1920.
https://archive.org/stream/58thregim...0reno_djvu.txt
Bayonet stuff is here. http://arms2armor.com/Bayonets/ross1910.htm
Joe Salter is listing one with a 6-10 production date at $375.