Air transport
![Austria 1982](/image/38194/base250X250/austria-1982-25-sonder-ballonpostflug.jpg)
Austria, Michel 1693, cancelled post card with stamp
1982. 25. SONDER-BALLONPOSTFLUG.
![Finland 1930](/image/19418/base250X250/finland-1930-zeppelin-10-mk-light-grey-violet-only-50-000-issued.jpg)
Finland, Michel 161, Mint never hinged
1930. Zeppelin. 10 mk. Light grey-violet. Only 50.000 issued.
Scott C1
Afa 167
![Austria 1956](/image/37842/base250X250/austria-1956-15-ballonpost-jungfernfahrt-des-oesterr-freiballon-omo-29-4-56-plus.jpg)
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 1946](/image/31386/base250X250/netherlands-1946-fdc-amsterdam-stalinlaan-16-ix-46-plus-rocket-flight-ostende-15.jpg)
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 1955](/image/37779/base250X250/austria-1955-14-ballonpost-erstmals-im-freien-oesterreich-salzburg-29-10-1954.jpg)
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 1931](/image/33185/base250X250/iceland-1931-air-mail-zeppelin-30-aur-green-red-king-christian-x-only-50-000.jpg)
Iceland, Michel 147, Hinged
1931. Air Mail. Zeppelin. 30 Aur green/red King Christian X. Only 50.000 issued.
Scott C9
Afa 147
![Austria 1968](/image/38045/base250X250/austria-1968-39-ballonpost-ballonaufsflug-wegen-sturmes-ausgefallen.jpg)
Austria, Michel 1257, cancelled post card with stamp
1968. 39. BALLONPOST. Ballonaufsflug wegen Sturmes ausgefallen.