AIR MAIL and ZEPPELIN Switzerland

Quality: ✉

16.9.1935 First Swiss International Glider Mail Flight - Jungfraujoch photo postcard (depicting a glider in flight) sent to Belgium and bearing a 1fr airmail stamp tied by special postmark in red, flight cachet alongside in blue as well as Meiringen transit c.d.s. dated the next day, relatively uncommon, particularly addressed abroad, vf