Manchuria. (Japan Post Office In Kwantung Leasehold). 1938. Air mail envelope written from Dairen, Manchuria' addressed to Tokyo bearing Japan SG 307, 30s orange and green and SG 317, 4s green tied by vernacular Dairen/I.N.P.O. date stamp with hand-struck Air Mail instructional in red applied in Mukden with arrival on reverse. Very fine.