Air Mail
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.
Austria, Michel 1134, Cover
1963. 30. BALLONPOST.
Austria, Michel 1763, Cover
1984. 71. BALLONPOST.
Austria, Michel 900, Cover
1957. 17. BALLON POSTFLUG TAG DER LUFTFAHRT WIEN 101 28.4.1957. + TURRACH 13.3.56.
Austria, Michel 1806, cancelled post card with stamp
1985. 73. BALLONPOST.
Austria, cancelled post card with stamp
1992. 87. BALLONPOST.
Austria, cancelled post card with stamp
1990. 83. BALLONPOST.
Austria, Michel 1009, cancelled post card with stamp
1955. 13. BALLONPOST. WIEN BALLON ZÜRICH 10.4.1955.
Austria, cancelled post card with stamp
1982. 68. BALLONPOST.
Austria, cancelled post card with stamp
1987. 78. BALLONPOSTFLUG.
Austria, cancelled post card with stamp
1984. 28. SONDER-BALLONPOSTFLUG.
Austria, Michel 1174, cancelled post card with stamp
1964. 32. BALLONPOST.
Austria, Michel 1636, cancelled post card with stamp
1980. 63. BALLONPOST.
Austria, Cover
1980. 64. BALLONPOST.
Austria, Michel 1603, Cover
1979. 19. SONDERBALLONFLUG.
Austria, Michel 915, cancelled post card with stamp
1956. 15. BALLONPOST. WIEN BALLON OMO 29.4.1956.
Austria, cancelled postal stationay
1982. 68. BALLONPOST.
Austria, Cover
1985. 74. BALLONPOST.
Austria, Michel 1878, cancelled post card with stamp
1987. BALLONPOST WERBESHAU.
Austria, Cover
1992. 87. BALLONPOST.
Austria, Michel 967, Cover
1951. 7. BALLONPOST. SALZBURG BALLON ZÜRICH 21.X.1951.