1929 (May 15), 1st America Flight (interrupted at Cuers) cover addressed to Cleveland, OH, franked by four air post values, including pair of Crane 3s red brown, blue confirmation cachet and red line interruption marking, delivered by another America Flight in August with appropriate NYC receiving "Aug. 5.1929", F/VF, Sieger #26, Est. $100-$150

75.00

1931 (August 27), Lausanne Flight postcard (real photo with Zeppelin Flight Around the World), franked by Rotary overprints on 20g, 50g and 1s, cancelled Innsbruck "8.VIII.31" ds, red oval Flight marking and Friedrichshafen connection of August 20 (too early), Lausanne "27.VIII.31" receiver, VF and scarce, Sieger #123 var, Est. $150-$200

100.00