Communication & Transport
![Austria 1956](/image/38018/base250X250/austria-1956-15-ballonpost-wien-ballon-omo-29-4-1956.jpg)
Austria, Michel 915, cancelled post card with stamp
1956. 15. BALLONPOST. WIEN BALLON OMO 29.4.1956.
![Liechtenstein 1931](/image/31344/base250X250/liechtenstein-1931-zeppelin-2-x-1-fr-vaduz-juni-1931-zeppelin-post-to-lausanne.jpg)
Liechtenstein, Michel 114, Cover
1931. Zeppelin 2 x 1 Fr. VADUZ JUNI 1931 ZEPPELIN-POST to LAUSANNE + VADUZ LIECHTENSTEIN 10.VI.31 + LAUSANNE POSTE AERIENNE SUISSE 10.VI.31.
![Denmark 1927-1930](/image/25153/base250X250/denmark-1927-1930-wavy-line-la-salle-round-cooler-plus-5-oere-brown-and-10-oere.jpg)
Denmark, Michel R 20, Cover
1927-1930. Wavy-line. LA SALLE (Round cooler) + 5 øre brown and 10 øre on cover to THORSHAVN FAROE ISLANDS from KØBENHAVN 19. IV. 1929. Scarce.
Scott 89 + ADVERT
Afa R 20