Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - France - 1933 (June 21), Orient Flight large size pre-printed cover (banking correspondences) from Paris to Tonkin (now Hanoi), franked by seven stamps of Pont du Gard 20fr orange brown, die III, together with four other values, each one with ''BI'' perfin (Bank of Indochina), postmarked on arrival, some conveyance defects, still F/VF, Est. $300-$350, Scott #250, 254A x7, 263