Canadian towed AA gun trials?

[sapper740]

Best title I could come up with for the next two pictures I've uploaded. Both show a bulldozer towing a tracked trailer in the snow. The first picture has the gun mounted directly onto the trailer while the second has the entire wheeled mount for the Bofors on the trailer. The first gun looks to be half-way in size between a 20mm Polsten and a 40mm Bofors. Perhaps a 37mm? (Where's Gunner when you need him?) I've never seen such a rig used operationally, hence the "trials" title. During my stint in the C.F., we used to borrow a very similar, although heavier duty trailer from 6th Field Engineer Co. to haul our DAREOD around. In any event, two interesting pics from Canada's military history. Enjoy! Derek.