Aug 1935: Vienna to Czechoslovakia. Airmail rate 15gr (from 23.4.1928); postcard rate 25gr; so overfranked by 5gr. Usual route to airport, but arrived too late! (Probably sent by train, as that would arrive sooner than waiting for the next flight.) The faint '6155' between the second and third lines of the address suggests pneumatic handling on arrival in Prague.