[Arran]

They had single door models made all the way into the 1970s (possibly 80s) here as well, at least among the cheaper models, I knew someone who had a rectangular chocolate brown number a few years ago. But I think that most if not all of the pre war fridges had single doors, unless they were from a restaurant. Oka, that's a funny name for a fridge, there is a town in Quebec by that name, famous for it's cheese, infamous for a Mohawk uprising.
Regards
Arran