Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - France - 1935 (March 6), Pioneer Flight large size pre-printed cover from Paris to Hanoi, franked on reverse by four high values (no perfins), including horizontal pair of Pont du Gard 20fr orange brown (die III), Hanoi ''16.3.35'' receiver, mostly VF, Est. $200-$250, Scott #250, 252, 254A x2