Zeppelin Flights. 1928 (October 11-15), America Flight stationery postcard 1.25m blue, uprated by two air post values, tied by oval ''4.10.28'' date stamp, blue confirmation marking and NYC ''16.OCT.1928'' arrival marking, VF and scarce, Sieger #21, C.v. €650 w/o a premium for franking (Image)

Zeppelin Flights. 1929 (March 25-28), Oriental Flight cover, franked by three air post values, including 2½ g brown, tied by Danzig ''21.3.29'' oval ds, Friedrichshafen ''23.MRZ.2'' connection and red confirmation cachet, Istanbul arrival is on reverse, VF, Sieger #23, C.v. €350++ (Image)

Zeppelin Flights. 1930 (May 18-19), SAF postcard franked by two values, tied by oval Luftpost ''15.5.30'' ds, red confirmation cachet, Seville ''19.MAY.30'' drop, minor scuffs on reverse, still F/VF, Sieger #57 I, C.v. €250 (Image)

Zeppelin Flights. 1931 (July 24-27), North Pole Flight postcard, franked by two stamps, including airplane 2½ g brown, tied with oval Danzig ds, Friedrichshafen ''24.7.31'' connection, red confirmation cachet and Ice Breaker ''Malygin'' drop of July 27, VF and scarce, Sieger #119, C.v. €900 w/o a premium for franking (Image)

Zeppelin Flights. 1932 (July 30-31), LUPOSTA Flight postcard, franked by complete Exhibition surcharged set of five, tied by Danzig special ds, green confirmation cachet, Rönne ''31.7.32'' drop ds, VF, Sieger #170Aa, not priced for a complete set, Scott C.v. $300 (Image)

Zeppelin Flights. 1936 (October 5-8), Airship ''Hindenburg'' 10th NAF registered cover, franked by 7 air post values, tied by Danzig oval ''3.10.36'' ds, Frankfurt connection and red confirmation cachet, NYC ''10.8.1936'' receiver, VF, Sieger #441 (Image)