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, Est. $250-$300 (Image)

1936, 100th Flight Across South Atlantic, 10fr Prussian green, nice centering, full OG, light trace of hinge, VF, C.v. $290, Est. $100-$150 (Image)