[Arran]

It could be a Canadian model, or it could be a U.S import. If Canadian they usually had a model number plate riveted to the chassis, but one thing that it would have is a radio license notice sticker plastered somewhere either on the bottom, or inside the cabinet. One would think that they would have added an extra IF amp to the Canadian version with the pushbuttons, but I don't think they did. You can also look through the battery models on this page and see if it matches one of them, Philco Products of Canada used a different model numbering system then the U.S ones did. https://pacifictv.ca/philcoschematics.htm#philco
Regards
Arran