Swabia 1911, circuit from and to Oos 2.9, droped Baden Baden, monochromatic Delag picture postcard "trip to Switzerland, 1 July 1908" with on board confirmation mark 2.9. In of the rare type II and 5 Pfg with date stamp Baden Baden 5.9. To Langenschwalbach, short greeting text in english formal language "Greetings from the air . ", superb