I recently acquired this 457G from an online auction. One should note that there is a noticeable difference in the design from the American model. You will notice a sheet metal ring resting on the fount with 4 threaded rods aiding in supporting the heat shield. This does not exist on the American model. Not many HGPs were made in Canada and only a few are known to exist. Presently in the process of cleaning, derusting etc. This thing is huge. Something to note...the generator valve wheel is missing on the peculiar elongated valve shaft which may have been a previous owner's (Canadian Aero Service) repair or modification...don't know for sure. However if the unit fires up normally I may just leave the shaft as is. Also working on a reproduction Decal.....time will tell.