Tom, I think the set in the POD is from the early 70s when, here in Canada, McClary-Easy was 'allied' with the GSW company. They also made Beatty and GSW appliances in those days (and once upon a time made the Dominion line of appliances - ask me how I know that... LOL). They seemed to use aspects of US machines in their designs, winding up with 'hybrid' versions of other brands - that Dominion washer of mine is actually based on an Easy design. I would hazard a guess that when these machines were on the market, the McClary folks were emulating what their competitors (Inglis/Kenmore, GE, Maytag) were doing and built a perforated tub machine.
I actually owned a McClary washer-dryer set that were mid-80s models, but by then, McClary was 'owned' by Camco (the Canadian company that built GE, Hotpoint and other brands) so the machine was a perf-tub with a GE style straight-vane activator.