Austria: 1929 1st America Flight PPC franked Airmail 50g & 3S tied by 'Wien 6 V 29' cds, with flight cachet & Friedrichshafen cds, but flight discontinued with red cachet to that effect. To New York with 'AUG 5 1929' arrival cds. Sieger 26/27.

Estimate AU$180

Austria: 1929 1st America Flight cover franked Airmail 2S & 5S tied by 'Wien 29 VIII 29' cds. To New York with flight cachet Friedrichshafen transit & New York arrival b/s. Sieger 27A.

Estimate AU$250

Austria: 1930 South America Flight card franked Airmail 5S tied by 'Wien 13 V 30' cds, with 3 diff flight cachets & 2 diff 'Bahia 24 V 30' arrival cds. Sieger 57. (P)

Estimate AU$300

Austria: 1930 Friedrichshafen-Dortmund Flight card franked Airmail 2g, 5g, 6g, 8g & 50g (3) tied by 'Wien 8 VIII 30' cds, with flight cachet & arrival cds. Sieger 77A. Only 50 Austrian covers flown. (P)

Estimate AU$180

Austria: 1930 East Sea Flight cover franked Airmail 30g (2) & 3S tied by 'Wien 9 VIII 30' cds. Finland drop cover with flight cachet & 'Helsinki 24 IX 30' b/s, then to USA. Sieger 88. Believed only 20 Austrian covers flown. (P)

Estimate AU$300

Austria: 1930 Kassel Flight card franked Airmail 10g, 25g, 50g & 1S tied by 'Wien 12 VIII 30' cds, with flight cachet & arrival cds. Sieger 82. Only 71 Austrian covers flown.

Estimate AU$180

Austria: 1931 Austrian Flight PPC franked Defins 10g, 60g, 1S tied by 'Wien 8 VII 31' with flight cachet, Wien Zeppelin cds, Friedrichshafen transit & Wien return cds. Sieger 116/118. (P)

Estimate AU$250

Austria: 1931 Munster-Essen Flight PPC franked Airmail 20g, 50g & 1S tied by 'Wien 13 VIII 31' cds, with flight cachet, Friedrichshafen transit & Munster arrival cds. Sieger 121. Only 8t Austrian covers flown to Munster.

Estimate AU$200

Austria: 1931 3rd South America card registered franked Airmail 10g, 30g blk of 4 on reverse, & 50g pr tied by 'Wien 13 X 31' cds. To Argentina with flight cachet, Friedrichshafen transit cds, & Buenos Aires arrival b/s. Sieger 133Aa. (P)

Estimate AU$250

Austria: 1932 7th South America Flight card franked Airmail 80g & 2S tied by 'Wien 24 IX 32' cds. To Brazil with flight cachet, Friedrichshafen transit & arrival cds. Sieger 183Aa. (P)

Estimate AU$300

Austria: 1933 Chicago Century of Progress Flight registered card franked Airmail 15g, 25g, 2S & 5S tied by 'Wien 13 X 33' cds. To Chicago with 2 diff flight cachets, Berlin transit & Chicago arrival cds, New York & Chicago b/s. Sieger 238. Believed only 44 Austrian covers flown. (P)

Estimate AU$250

Austria: 1934 2nd South America Flight cover franked Airmail 30g, 50g, 80g & 2S tied by 'Wien 7 VI 34' cds. To Brazil with 2 flight cachets, Friedrichshafen transit & Pernambuco b/s. Sieger 250Aa

Estimate AU$180

Germany: 1929 SW Germany Flight Zeppelin in hanger PPC franked Hindenburg 3pf tied by 'Baden-Baden 19 4 29' airmail pmk. To Berlin with 'On Board' cachet in red. Sieger 023Ic cat €280. (P)

Estimate AU$250

Germany: 1931 Switzerland short flight card Hindenburg 8pf uprated 4pf & 30pf (3) tied by 'Luftschiff Graf Zeppelin 2 6 1931' on board cds. To Czechoslovakia with Teplitz-Schonau cds. Sieger 0108.I. (P)

Estimate AU$400

Germany: 1934 Switzerland Flight use of 6pf Postcard uprated Airmail 20pf & 25pf tied by 'Luftschiff Graf Zeppelin 27 9 34' on board cds. Addressed to Holland. Sieger 0276. Most attractive. (P)

Estimate AU$350