1944, War Refugees SPECIMEN, complete set without surcharge, instead red overprint Specimen and security punch hole, mint never hinged, very rare set from American Bank Note Archives, very fresh, superb condition

1945, Equal Treaties, complete set as blocks of four, all uniformly used with postmark CHUNGKING 7.7, with original gum, very fine set

1929-07-10, 3rd Flight Shanghai - Nanking, commercial registered cover Shanghai - Nanking - Hankow with arrival postmark on reverse, unusual item

1929-11-26, First Direct Flight Canton - Yunnanfu, plane "Golden Horse" piloted by Commander Liu, cover from Canton 11-25 to Yunnanfu, 300 covers flown

1930-12-23, Flight Nanking - Wuhu (- Hankow), arrival postmark on reverse, only 272 items flown

1931-01-16, First Flight Canton - Wuchow, Canton Aviation Bureau, cover from Canton 01-16 to Wuchow, arrival postmark on reverse

1931-01-16, First Flight Wuchow - Canton, flown cover from Wuchow to Canton plus cover from return flight Wuchow via Canton to Hongkong 01-17

1932-05-17, Raid Fernando Rein, 2nd Madrid - Manila Flight, leg Hongkong - Manila, cover from Hongkong 05-17 to Manila 07-11, 287 items known

1933-10-25, First Flight Canton - Hongkong - Swatow - Amoy - Foochow - Wenchow - Shanghai, illustrated CNAC cover from Hongkong to Shanghai 11-06

1933-10-25, First Flight Canton - Hongkong - Swatow - Amoy - Foochow - Wenchow - Shanghai, illustrated CNAC cover from Swatow to Shanghai 10-27

1933-10-25, First Flight Canton - Hongkong - Swatow - Amoy - Foochow - Wenchow - Shanghai, illustrated CNAC cover from Shanghai to Amoy

1933-10-25, First Flight Canton - Hongkong - Swatow - Amoy - Foochow - Wenchow - Shanghai, illustrated CNAC cover from Canton to Shanghai

1934-05-01, EURASIA First Flight Peking - Canton via Taiyuan - Loyang - Hankow - Changsha, cover from Canton 05-01 with special postmark to Hankow, a special arrival postmark was used for this flight

1934-05-01, EURASIA First Flight Peking - Canton via Taiyuan - Loyang - Hankow - Changsha, cover from Peking 05-01 with special postmark to Changsha 05-02

1934-05-01, EURASIA First Flight Peking - Canton via Taiyuan - Loyang - Hankow - Changsha, cover from Peking 05-01 with special postmark via Loyang to Sian, good variety

1934-05-01, EURASIA First Flight Peking - Canton via Taiyuan - Loyang - Hankow - Changsha, cover with franking on both sides from Changsha 05-01 via Canton to Sian, interesting variety

1934-05-01, EURASIA First Flight Peking - Canton via Taiyuan - Loyang - Hankow - Changsha, cover from Hankow 05-01 via Loyang to Sian, good variety

1934-05-01, EURASIA First Flight Peking - Canton via Taiyuan - Loyang - Hankow - Changsha, cover franked on both sides from Hankow 05-01 to Loyang

1934-05-01, EURASIA First Flight Peking - Taiyuan - Loyang - Hankow - Changsha - Canton, cover Canton to Changsha 01.05

1934-09-05, Goodwill Flight Japan - China, cover from Osaka 09-05 to Peking 09-06