coverAir Mail An extensive collection written up in album from 1923 first flight Peking-Tiensin, 1928 Shanghai-Canton with special cachets, 1929 Canton-Yunnanfu with cachet (not flown), 1931 experimental flight Canton-Wuchow (2) with cachet, 1931 Shanghai-Manchouli-Berlin including to England (4, two on special envelopes), 1931 Chungking-Hankow on special envelope, 1932 Von Gronau Round-the-World flight, Shanghai- Manila, 1932 Tihwa-Lanchow trial flight, 1933 cover from Wei-Hai-Wei to London, CNAC leaflet for Chengtu-Shanghai first flight and with a special flown cover, 1933 Shanghai-Canton special envelope (5), 1934 Nanning-Canton trial flight (4) with cachet, 1936 Shanghai-Hong Kong courtesy flight (2) and later flights plus some air mail stamps making a very good lot. Lionel Prescott Collection. (128 covers)