Magdeburg trip 1931, composite document with catapult advance excursion from steamer "Europe", letter from New York 18.5. With 15 and 25 C airmail in Michel F, catapult advance excursion to Southampton with arrival Cologne 24.5. And red "m Lb" on face, further with transit Friedrichshafen 7.6. And with airship further to Magdeburg, Zeppelin flight stamp on face, arrival Magdeburg with violet "m Lb" reverse, extreme scarce combination with exclusively USA franking without further German additional franking, about the necessary Zeppelin hammer price to settle, with the USA inventory no post agreement, all unusually document, superb (winner 109 Aa, gray / leather K62 X3)