To start with, it was issued to 101 Cadet Corps, Vancouver Public Schools Cadet Regiment, Vancouver, BC. The unit was formed November 18, 1903 and disbanded January 21, 1941. If I'm not mistaken, it is a Model 12 "cadet version" with the 25" barrel. Probably made 1918-1921, but possibly a bit later. I you PM me the serial number, I should be able to get closer with the date. There may also be a date code on the bottom of the barrel (but only for rifles made between 1921 and 1941). The date stamp is a capital letter in the top vee formed by two crossed swords.