Definitely M1917's and Landsdowne Park is the exhibition grounds in Ottawa that was at its peak in the 30's and 40's. Durign the war (WW2), the miltary used it as a parade ground and for drill.
Landsdown, at that time, was actually called the "Canadain National Exhibition Grounds".
So CNBTC might be something like "Canadian National Basic Training Course"
Landsdown, at that time, was actually called the "Canadain National Exhibition Grounds".
So CNBTC might be something like "Canadian National Basic Training Course"




















































