1943 (Dec 7) USA 6c Airmail printed stationary envelope with vertical crease to Salt Ontario from D. 620091 Cpl. Lefebure B., 1st Bn. Regt. De Hull cancelled C.A.P.O. 51 d/s & with boxed Passed By / US / 24322 / Army Examiner h/s in violet…………….1st Battalion Regiment De Hull a French Canadian unit were part of 13 Canadian Infantry Brigade & part of the American Task Force sent to attack and repel the Japanese forces on the Aluetian Islands off Alaska with mail censored through the US facilities..