1919, 8.10. Stockholm trip, return flight Stockholm - Friedrichshafen, Delag-picture card "in the Cabin of the Zeppelin air ship", written from a swedish passenger to Stockholm with on-board confirmation mark the Lake Constance from 8.10, the properly franking from 10 Pfg National Assembly and 5 Pfg Germania was to arrival of the airship in Berlin at the 10.10.19 cancelled, expertized Aisslinger BPP