Canada 1938: Airmail first flights Canada/Belgium SG371Three maiden flight airmail letters for first flights in Canada, first official flight from Belgium. Canada Air Mail, first flight Vancouver Quesnel, First Narrows Bridge (Canada 1938 6c blue 15. 6. 38 fine used, SG371 2. Canada Air Mail, first flight Vancouver Quesnel, First Narrows Bridge (Canada 1938 6c blue 15. 6. 38 fine used on cover, SG371 & Belgium 1938 35c + 5c green, Church of Koekelberg 1. 6. 38 fine used on cover, Michel472) Canada Air