Austria
![Austria 1951](/image/38011/base250X250/austria-1951-7-ballonpost-salzburg-ballon-zurich-21-x-1951.jpg)
Austria, Michel 965, cancelled postal stationay
1951. 7. BALLONPOST. SALZBURG BALLON ZÜRICH 21.X.1951.
![Austria 1953](/image/32115/base250X250/austria-1953-2x-1-s-luftpost-fdc-bregenz-29-9-53.jpg)
Austria, Michel 984, cancelled post card with stamp
1953. 2x 1 S. LUFTPOST FDC BREGENZ 29.9.53.
![Austria 1982](/image/38197/base250X250/austria-1982-25-sonder-ballonpostflug.jpg)
Austria, Michel 1695, cancelled post card with stamp
1982. 25. SONDER-BALLONPOSTFLUG.
![Austria 1956](/image/37822/base250X250/austria-1956-15-ballonpost-jungfernfahrt-des-oesterr-freiballon-omo-29-4-56-plus.jpg)
Austria, Michel 870, Cover
1956. 15. BALLONPOST. JUNGFERNFAHRT DES ÖSTERR FREIBALLON OMO 29.4.56. + WIEN WIENER INTERNATIONALE FRÜNJAHRSMESSE 1956 MESSEPALAST 16. III. 56.
![Austria 1956](/image/37785/base250X250/austria-1956-15-ballonpost-jungfernfahrt-des-oesterr-freiballon-omo-29-4-56-plus.jpg)
Austria, Michel 895 + 897, Cover
1956. 15. BALLONPOST. JUNGFERNFAHRT DES ÖSTERR FREIBALLON OMO 29.4.56. + Besuchen Sie das heeresgeschitliche Museum Wien 21.3.58.