Here in Spokane, WA, we're less than 100 miles from Canada, but in forty years I've never seen any Gray tools or boxes.
Yesterday, at a recycling center junk store, in a box of misc wrenches, a Gray Canada E1820 - 9/16" x 5/8" OE floated to the surface.
Just yer basic OE wrench; certainly nothing special in quality or design, but just different stamping.
jack vines