1928, "America flight", US postal service to the return flight, world round flight Lot-fish-Lakehurst (29 A), superb cover (Image 1) (Image)

1929, "Flight to Zurich-Duebendorf", superb postcard with scarce machinery posting stamp, superb (Image 1) (Image)

1932, "4. South America flight", franked with Zeppelin stamp to 3500 rice and 350 "VARIG", from Santa Cruz, superb (Image 1) (Image)

1936, "Olympia trip", handing in for transport Rhein-Main airport, superb postcard with rare pneumatic post delivery (Image 1) (Image)

Finland: 1932, "4. South America flight", connecting flight from Berlin, superb cover (Image 1) (Image)

Netherlands: 1931, "Egypt trip", franked among others with Michel number 110 with sewing roulette, superb postcard (Image 1) (Image)

Switzerland: 1930, "South America flight", to Pernambuco, superb cover (Image 1) (Image)

Hungaria: 1930, "trip to Russia", superb postcard (Image 1) (Image)