Zeppelin NT, Day of Aerophilately 2011 - Document, Switzerland

The day of the Aerophilatelie 2011 took place in the rooms of the Aviation Museum Altenrhein in Switzerland. On this occasion, the Zeppelin NT "Baden-Württemberg" carried out a mail flight from Friedrichshafen to Altenrhein on May 14, 2011. The transported documents are franked with the Swiss postage stamp "100 years of aviation in Switzerland" and stamped with the special postmark "9423 ALTENRHEIN / DAY OF AEROPHILATELY / May 14, 2011 / illustration: Zeppelin NT". The authenticity of the receipt and the transport with the Zeppelin confirm the affixed on-board seal stamp. This bears the imprint of the on-board stamp.
The flight of the Zeppelin NT and the mail transport took place in favor of the Pestalozzi Children's Village Wahlwies.