Oh cool! That's a semi-local for me but I've never seen it before. I've never seen the style before either, which is odd. I guess it wasn't a popular generic design.
looked thru my pictures and there is a clear denton's bottle , I don't have one myself but I have seen it online a couple times over the years . the price seems a little high as that doesn't even include shipping and I don't think its that rare
haven't seen this style used in other Ontario cities , it does seem to be unique
I don't really have any cornwall bottles , only one I want is an art deco bottle for "Bonneville bottling works " as I have most of the bottles in that style but missing the cornwall one