Air Mail cover 1926-38, range of first or commemorative flight XU5 (7) and cards (2), including 1926 (20 Sept.) Dairen to Osaka and Seoul, (8 Nov.) Dairen to Kobe and Seoul, 1927 (9 Feb.) Harbin to Paotow and Kalgan, 1928 (10 Sept.) Hiroshima to Mukden, and two others.