We do not see a lot of Chalet glass over here - possibly because they could not compete against the many companies working in the same style, so if you picked it up in Canada it might be Chalet, otherwise you have to assume it is from Vannes-le-Chatel (France). I do not think it is one of the Belgian makers (Boussu, VSL, Michotte). Definitely fifties/ sixties, and only a nodding relationship with Art Deco. :roll: