Italy flight 1933, San Marino post, return flight, registered letter from San Marino Citta 27.5. To Geneva with 2, 75 L stamps mixed postage and 15 L Zeppelin, blue flight stamp, transit Rome 29.5. And arrival -special cancellation Friedrichshafen 30.5. Reverse, a small part the flap is absent, otherwise superb (Longhi 624, 2.350 Euro)