While just looking at the current REA auction, I came across this Eddie Miskis card and the title/description struck me as I assumed it was pretty much dis-proven that gray backs are in fact not CDN or specific to Canada?
https://bid.robertedwardauctions.com/Lots/Gallery
Miskis link doesn't work? Pg 5, lot 1122
https://bid.robertedwardauctions.com...e?itemid=47033