Who was Beretta's importer to Canada in that era? It shouldn't be too tough to come up with a catalog, or a reproduction, from Abey Books to find out.

There are plenty of Galeif and Garcia catalogs, and I doubt anyone else was importing Beretta while those two companies were doing it. But, maybe there were several importers to Canada?

Also, if the big market (US versus Canada) had guns speced a certain way, it would make sense that the Canadian market got things just a little bit different, to ease possible production shortages. Maybe no vent ribs in Canada, or cross bolts, on guns that usually had both, here in the US?

Best,
Ted