1920 (7 May) Tientsin - Peking FFC, used on Hong Kong GPO OHMS cover, f.w. Junk 1-1/2c x3 + 3c x3, for 13c domestic express letter rate
1920 (7 May) Tientsin - Peking FFC, used on Hong Kong GPO OHMS cover, f.w. Junk 1-1/2c x3 + 3c x3, for 13c domestic express letter rate (because there was no airmail postage yet), tied by Tientsin GPO Aeroplane Service bilingual cds. On reverse sealed with Hackmack & Co / Tientsin-Peking label. Cover with folds and creases, but not affecting its historical significance. Plus an Aston Hotel Tientsin advertisement of providing mail service supported by air flight from Tientsin to Peking. With folds and creases. Very historical and interesting. (43 x 30cm). In 1919, the Peiyang Government established Aeroplance Service in Peking. On 7 May 1920, inaugural flight from Peking to Tientsin and then returned to Peking was conducted. 195 mails were carried back to Peking. A milstone piece for Chinese airmail postal history