Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Egypt - Zeppelin Flight - 1931 (April 11-13), Egypt Return Flight postcard from Cairo to Germany, franked by error blue surcharge 50m/27m orange brown with error date of 1951 instead of 1931, special Cairo date stamp cancel, Friedrichshafen ''13.4.31''arrival marking, VF and scarce card, Sieger #105Axa, C.v. €250, Est. $200-$250, Scott #C3a