Ben:
I am Canadian and don't recognize this as being anything I have encountered or seen. Unlikely that anything over here would have spoked wheels like that. In North America, we did have what are known here as "box-cab" locomotives. Some were diesel .. most were electric. They looked something like your model. The very first diesels run experimentally on the Canadian National Railways were box cabs. One of these, #7700 (see below) was the first diesel switcher on the CNR and is preserved at Exporail, our National Railway Museum in Delson, Quebec.
There a bunch of boxcab pictures at
http://www.northeast.railfan.net/diesel94.html. Pictures of the pioneering CNR 9000/9001 Road Locomotives are shown below. These were eventually scrapped.
Russ
