Germany, 1928 America Flight, postcard with Mi.423 and 424, the 2RM and the 4RM, tied by Friedrichshafen 7 Okt 28 cds, usual flight cachet, New York arrivel cance Oct 16 1928, very fine. (Sieger 21A,B) (Image)

Germany, 1929 Orient flight, Mi.382, 1M tied by Friedrichshafen 24 Mrz 29 cds and one-liner: "Not in the Airmails", and usual flight cachet on postcard, very fine (Sieger 23IA) (Image)

Germany 1930, South America Flight, Friedrichshafen to Sevilla, Mi.438 tied by Friedrichshafen 18.5.1930 cds, usual flight cachet, backstamped Sevilla 19 May 30, very fine (Sieger 57I) (Image)

Germany 1930, South America Flight, Picture post card "Round Trip" Flight, Mi.438 and 439 tied by Friedrichshafen 18.5.30 cds, German and US flight cachets and Friedrichshafen 6.6.30 arrivel cds, very fine (Sieger 57P) (Image)

Germany 1930, South America Flight, "Round Trip" Flight, Mi.439 single and a pair tied by Friedrichshafen 18.5.30 cds, German and US flight cachets and Friedrichshafen 6.6.30 arrivel cds, very fine (Sieger 57P) (Image)

Germany 1930, South America Flight, "Round Trip" Flight, Mi.439 in vertical strip of three, tied by Friedrichshafen 18.5.30 cds, German and US flight cachets and Friedrichshafen 6.VI.30 arrivel cds, very fine (Sieger 57P) (Image)

Iceland 1931, Iceland Flight, Mi.147 and 149, 30Aur and 2 Kr., tied by Reykjavik 30.VI.31 cds, on registered envelope, usual flight cachet, to Cottbus, Germany, backstamped Friedrichshafen 3.7.31 and Cottbus 4.7.31 cds, very fine (Sieger 114D) (Image)

Iceland 1931, Iceland Flight, Mi.147 and 149, 30Aur and 2 Kr., tied by Reykjavik 30.VI.31 cds, on registered envelope, usual flight cachet, to Chemnitz (addresse erased), backstamped Friedrichshafen 3.7.31 and Chemnitz 4.7.31 cds, very fine (Sieger 114D) (Image)

Germany 1931, Polar Flight, Mi.456, 1M red, on postcard tied by Friedrichshafen 24.7.31 cds, Leningrad 25.VII.31 receiver alongside, usual flight cachet, very fine (Sieger 119B) (Image)

Germany 1931, Polar Flight, 456(2) on picture postcard, tied by "on board" 25.7.1931 cds, "Malyguin" arrival 27-VII-31 alongside, usual flight cachet and arrival pmk. Rowayton (Connecticut), very fine (Sieger 119C) (Image)

Germany 1931, Polar Flight, Mi.457 and US 5 cents violet on home made postcard, tied by Friedrichshafen 24.7.31 cds, "Malyguin" arrival cancel alongside, usual flight cachet, to be forwarded via Alaska to Seattle, very fine (Sieger 119F) (Image)

Germany 1931, Polar Flight, Friedrichshafen to Icebreaker "Malyguin", Mi.458 tied by Friedrichshafen 24.7.31 cds, Icebreaker "Malyguin" 27-VII-31 receiver alongside, usual flight cachet on imprinted Air Mail cover, backstamped "First Intourist Expedition 1931 Icebreaker Malyguin" (Sieger 119F) (Image)

Germany 1931, Polar Flight Berlin to Leningrad, Mi.456 in vertical pair, tied by Berlin-Staaken 25.7.31 cds, Leningrad arrival 25.VII.31 alongside, usual flight cachet, very fine (Sieger 119G) (Image)

Germany 1932, Fourth South America Flight Duisburg 30.4.32 cds to Friedrichshafen 2.5.32 cds to Buenos Aires May-7-32 (backstamped) with colourfull franking (RM4,75) with f.i. Mi.457 and the usual flight cachet, very fine (Sieger 157A) (Image)

Danzig 1932, Luposta Flight, Mi.231/35 on Roundtrip to Rönne 31.7.32, one-liner "Abwurf Rönne", to Copenhagen (Sieger 170Aa) (Image)

Danzig 1932, Returnflight Luposta - Friedrichshafen 1-8-32, usual flight cachet, very fine (Sieger 170B) (Image)

Germany 1933, Century of Progress Flight Friedrichshafen to Chicago, Mi.496, 497 and 515, tied by "Bad Gandersheim-Roswithastadt-Luftkurort 11.10.33" cds, Friedrichshafen Transit cancel 14.10.33, on registered envelope, usual flight cachet, backstamped Chicago Oct 26, very fine (Sieger 238Bc) (Image)

Germany 1933, Century of Progress Flight Friedrichshafen to Chicago, Mi.496, 497 and 515, tied by "Pforzheim-Brötzingen 9.10.33" cds, Friedrichshafen transit cancel 14.10.33, on registered envelope, usual flight cachet, backstamped Chicago Oct 26, Albany Oct 28, very fine (Sieger 238Bc) (Image)

Germany 1933, Century of Progress Flight Friedrichshafen to Chicago, Mi.498, tied by Friedrichshafen 14.10.33, usual flight cachet, backstamped Chicago Oct 26, very fine (Sieger 238Bc) (Image)

Germany 1935, 100th Ocean Crossing, Mi.455, 486, 586 and 587(pair), tied by "on board" 15.9.35 cds, usual flight cachet, very fine (Sieger 321) (Image)