Sale #157

1933-37 first flight covers (5) 1933 March 21st experimental flight Dacca - Calcutta bears Dum Dum cachet, posted on arrival (53 flown), 1933 July 11th Imperial Airways/ITCA Calcutta - London official cover, another but a postal stationery card Calcutta - Baghdad on to RAF HINAIDI (only 34 flown on this leg), another but an official cover Calcutta - Windhoek, 1937 May 18th Japanese flight by 'Divine Wind' Calcutta - Rangoon, posted on arrival bears special vignette (54 items flown).