Transportation
Austria, Cover
1989. 38. SONDER-BALLONPOST. 1. BALLONPOSTFLUG IN KAP VERDE.
Austria, cancelled post card with stamp
1983. 70. BALLONPOST.
Austria, Michel 1658, Cover
1980. 64. BALLONPOST.
Austria, cancelled post card with stamp
1990. 84. BALLONPOST.
Mint never hinged
1900. EXPOSITION UNIVERSELLE PARIS 1900 PAVILLON D4E LA VILLE DE PARIS
Belgium, Michel 732, cancelled post card with stamp
1946. NEDERLANDSCHE RUIMTEVAART STUDIO Poste lance par fusee en Belgique. Raketprovoflugo.__ OOSTENDE 15-3-46. Mars-Venus-Raket - Anno 1960?
Austria, cancelled post card with stamp
1981. 65. BALLONPOST.
Austria, cancelled postal stationay
1989. 82. BALLONPOST.
Austria, Michel 895, Cover
1956. 15. BALLONPOST. JUNGFERNFAHRT DES ÖSTERR FREIBALLON OMO 29.4.56. + Besuchen Sie das heeresgeschitliche Museum Wien 21.3.58.
Austria, Cover
1985. 31. SONDERBALLONPOSTFLUG. ISRAPHIL 85.
Austria, Cover
1982. 67. BALLONPOST.
Austria, Michel 1787, cancelled post card with stamp
1984. BALLONPOST-AUSSTELLUNG.
Austria, Michel 1271, Cover
1968. 40. BALLONPOST.
Austria, Cover
1986. 75. BALLONPOSTFLUG.
Austria, cancelled post card with stamp
1985. 30. SONDER-BALLONPOSTFLUG.
Austria, Michel 1597, Cover
1979. 61. BALLONPOST.
Austria, cancelled postal stationay
1988. 79. BALLONPOST.
Austria, Michel 1378, Cover
1973. 49. BALLONPOST.
cancelled post card with stamp
1946. EXPOSITION MARITIME IERE ASCENSION DE NUIT 1946.__ 2 F. BALLON.