An update:
Documents can be found in both CMHQ files 55/4070/1 and 55/4070/1/2 both files are titled “Army Smoke Weapons”.
The start of 55/4070/1 is at
https://heritage.canadiana.ca/view/o...6/4487?r=0&s=3
The documents extend from image 4487 to image 4522.
55/4070/1/2 extends from image 4755 to 4955.
While not all of the documents relate to these Multi Barrelled Smoke Dischargers, a very large portion of them do, so there is likely a couple of hundred pages to read.
Don’t stay up too late!
Colin