Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - France - 1927 (June 12), Balloon Flight from La Wantzenau to Strasbourg, leaflet with the Flight details franked by two semi-postal stamps and bearing three specially issued labels (two on reverse), light impression of blue flight cachet and all appropriate markings, mostly VF, Scott #B21-22