AIR MAIL and ZEPPELIN Liechtenstein

Quality: ✉

12.9.1935 N° 60g (Mi. Zeppelin Specialised), First Swiss International Glider Mail Flight - Jungfraujoch postcard sent from Vaduz and addressed to Zürich, dropped off at Unterseen and franked with OFFICIAL stamps of 10rp and 90rp (Michel Dienst 12 + 18, the cat. value for the 90rp on cover is €100), special flight cachet and postmark in blue and red respectively alongside, as well as an official seal of the Government of Liechtenstein in the upper left corner, rare, vf