I stumbled upon these Machinery ZL pictures yesterday; they are Post-war though. They do show that at least one was still in use in Homeland Canada as late as 1952.
The text in the magazines also describes the addition of a Wireless set to the ZL.
They are snaps from RCEME Quarterly issues that are available online;
https://archive.org/details/%40rceme...licdate&page=3
July 1951
January 1952
July 1952