September 10-11, 1930, Zeppelin Moscow Flight stationery illustrated postcard 5k brown, uprated by four non-Zeppelin stamps, cancelled by special ds, Friedrichshafen "11.9.30" arrival marking, VF, Sieger #85D

120.00

July 25-27, 1931, North Pole Flight postcard and cover, franked altogether by ice-breaker "Malygin" imperforated complete set of four, cancelled with Leningrad special marking, red and violet flight cachet, ice-breaker arrival ds, VF, Sieger #120Ba, Bb

150.00

1932, PPC prepared for Zeppelin 4th South America Flight due to delay delivered via regular air mail route, franked by two Airship stamps, Pernambuco "18.V.32" arrival date stamp, VF

150.00

August 29 - September 1, 1932, Zeppelin 5th South America Flight registered postcard to Brazil, franked by three air post values, Berlin and Friedrichshafen connections, violet flight cachet, Pernambuco "1.IX.32"arrival ds, VF, Sieger #171A

300.00

September 10-15, 1932, Zeppelin 6th South America Flight registered postcard to Brazil, franked by three Airship values, red Stuttgart connection, green flight cachet, Pernambuco "15.IX.32" arrival ds, VF and scarce, since the Stuttgart connection not mentioned either in Michel or Sieger for Soviet origin, Michel #275c, Sieger #177 var

500.00

October 9-13, 1932, Zeppelin 8th South America Flight hand-illustrated registered cover to Brazil, franked by three air post values, Berlin connection, red flight cachet, Pernambuco "13.X.32" dropped ds, Brazilian Condor-Zeppelin marking on reverse, VF, Sieger #189B

300.00

August 5-9, 1933, Zeppelin 4th South America Flight registered postcard to Brazil, franked by three air post stamps, Berlin connection, red flight cachet, Pernambuco "9.VIII.33" arrival and all appropriate markings, VF, Sieger #223B

250.00

September 2-6, 1933, Zeppelin 6th South America Flight registered cover to Paraguay, franked by 15 values, posted on flight "Leningrad - Berlin", Berlin and Friedrichshafen connections, black confirmation cachet, Asuncion arrival ds, VF, Sieger #229B

300.00