25 years of Swissair Service over the North Atlantic, special mail transport & 50 years of international air-mail traffic, 1922-1972

By a special flight on 02 May 1947 Swissair took up its regular Service between Switzerland and the United States. To mark the 25^thAnniversary of this event the Swissair Flight Geneva – New York of 02 May 1972 undertook a special mail transport, for which PTT Switzerland authorised  the use of the special date stamp or cancellation on the special stamp on this First Day Cover. The special stamp was also issued on this day to mark 50 years of international air-mail traffic, 1922-1972 - Geneva-Zurich-Nuremberg, the PTT issued a special postage stamp. Receipts from the sale of the special stamps amounted to 2.7 million Swiss francs, 80% of which went to the Pro Aero Foundation and 20% to the Swiss Air Ambulance Service.

Thank you my dear friend Maria for this lovely FDC.