Looks like it was the second tractor built with PTO for the Air Force. It would be a 1955 model. Missing the back door but otherwise a pretty good looker from the pics. As far as I know the I-244 never made its way into the Canadian service but you can never say never!!
One thing I think might be missing on the tractor are the brass tags. Unfortunately, I think the brass tags help make it that much more identifible as a military tractor. There might be some on it but I just could not see them.
I know where there is a magnet for it, when you are ready!!
Thanks for the post
GTE