Air transport
Austria, Michel 1613, Cover
1979. 62. BALLONPOST.
Austria, Michel 1693, cancelled post card with stamp
1982. 25. SONDER-BALLONPOSTFLUG.
Finland, Michel 161, Mint never hinged
1930. Zeppelin. 10 mk. Light grey-violet. Only 50.000 issued.
Scott C1
Afa 167
Austria, Cover
1988. 80. BALLONPOST.
Austria, cancelled post card with stamp
1990. 84. BALLONPOST.
Austria, cancelled post card with stamp
1983. 70. BALLONPOST.
Austria, Cover
1990. 83. BALLONPOST.
Austria, Michel 842+, Cover
1956. 15. BALLONPOST. JUNGFERNFAHRT DES ÖSTERR FREIBALLON OMO 29.4.56. + ST. GABRIEL schutzpatron der post u der philatelisten WIEN briefmarken ausstellung 25 MÄRZ 1956.
Netherlands, Michel 462-467, cancelled post card with stamp
1946. FDC AMSTERDAM-STALINLAAN 16.IX.46 + ROCKET-FLIGHT-OSTENDE 15/3 46. to Brooklyn, USA. 258 were onboard.
Austria, Michel 1129, cancelled postal stationay
1963. 29. BALLONPOST.
Austria, cancelled postal stationay
1981. 65. BALLONPOST.
Austria, Michel 1569, Cover
1978. 30 JAHRE ÖSTERR. BALLONPOST.
Austria, Michel 870, Cover
1955. 14. BALLONPOST ERSTMALS IM FREIEN ÖSTERREICH SALZBURG 29.10.1954. + WIEN 101 3. BUNDESKONGRESS WIEN 18.-22.10. 1955 18.10.1955.
Iceland, Michel 147, Hinged
1931. Air Mail. Zeppelin. 30 Aur green/red King Christian X. Only 50.000 issued.
Scott C9
Afa 147
Austria, Michel 1257, cancelled post card with stamp
1968. 39. BALLONPOST. Ballonaufsflug wegen Sturmes ausgefallen.
Austria, Michel 1091, Cover
1961. 26. BALLONPOST. WELS 21. X 1961.
Austria, Cover
1986. 75. BALLONPOSTFLUG.
Austria, Michel 1668, Cover
1981. 24. SONDERBALLONFLUG.
Austria, cancelled postal stationay
1982. 67. BALLONPOST.
Austria, cancelled post card with stamp
1985. 30. SONDER-BALLONPOSTFLUG.
Austria, cancelled postal stationay
1978. 60. BALLONPOST.