Fairly standard for the Canadian machines i have seen, this was one of the brands Ruth Hollander used to sell, Tom got it from her and I got it from him years ago.when he got it i believe it was brand new.
The filter paper isn't the same as a Silver King or Fairfax. It's actually a crinkled paper, similar to Air-Way bag material. The only thing I didn't like was how tightly the hose and wands fit together. But it's a really good and well made vacuum. And proof that there were 'bagless' vacuums before Dyson came along.
Watermatic, Gem, Switson, Valliant, Eaonia, Some Viking, Regina, Master Craft, Fairbanks Morse and quite a few others were initially made by Switson Industries then General Signal Appliances that took over Switson. All from Welland Ontario