1933, Italy flight, Italian post office, registered cover with 5 L. Zeppelin stamp with special stamp ROMA / POSTA AEREA - ZEPPELIN 29.5.33 (type I) (transmitted from Rome at the 27.5.33) to Rietschen with arrival postmark and appropriate Cachet, reverse machinery special cancel ROMA 29.5.33 and green arrival postmark Friedrichshafen 30.5.33