Chris,
I own quite a few Canadian skillets, because that is where I live, and like James, I don't know of any experts in Canadian cast iron. Very little is known, compared to Griswold or Wagner.
There does not seem to be as much interest in the Canadian iron, even here in Canada. I think any good skillet that can be used, and has some sort of interesting markings should be worth the $25-$35 James mentioned.
Chris