Italy flight 1933, Italian post office, return flight, card from Rome 25.5. To Romanshorn with 25 C special stamp and 3 L Zeppelin, both values with very rare \"Normal\" cancellation by means of advertising meter-mark \"Mostra Rivoluzione . \", turquoise green flight stamp, transit special cancellation Rome reverse and arrival -special cancellation Friedrichshafen 30.5. On face, superb (Longhi 505 var, 1.000 Euro)