Balloon
Austria, cancelled post card with stamp
1987. 78. BALLONPOSTFLUG.
Austria, Cover
1987. 77. BALLONPOSTFLUG.
Austria, cancelled post card with stamp
1979. 62. BALLONPOST.
Austria, Michel 1174, cancelled post card with stamp
1964. 32. BALLONPOST.
Austria, Michel 1134, cancelled post card with stamp
1963. 30. BALLONPOST.
Austria, Michel 1801, cancelled post card with stamp
1985. 30. SONDER-BALLONPOSTFLUG.
Austria, Michel 1602, Cover
1979. 19. SONDERBALLONFLUG.
Austria, Cover
1978. 18. SONDER-BALLONPOST. PRAHA 72.
Austria, Michel 1893, Cover
1988. 36. SONDER-BALLONPOSTFLUG.
Austria, Michel 873, cancelled postal stationay
1955. 13. BALLONPOST. WIEN BALLON ZÜRICH 10.4.1955.
Austria, Michel 1105, Cover
1962. 27. BALLONPOST. KUFSTEIN 27. V 1962.
Austria, Cover
1990. 84. BALLONPOST.
Austria, Michel 1557, cancelled post card with stamp
1977. 58. BALLONPOST.
Austria, Cover
1983. 69. BALLONPOST.
Austria, Cover
1983. 70. BALLONPOST.
Austria, cancelled post card with stamp
1989. 82. BALLONPOST.
Austria, Michel 1787, cancelled post card with stamp
1984. 28. SONDERBALLONFLUG.
Austria, Michel 1146, Cover
1965. 33. BALLONPOST.
Austria, Michel 1661, Cover
1981. 65. BALLONPOST.
Austria, cancelled post card with stamp
1977. INT. BALLONFLIEGEN. EDUARD SPELTERINI.
Austria, Cover
1988. 36. SONDER-BALLONPOSTFLUG.