Austria. Aéreo
Automatically generated translation
Yvert 14, 23, 27/28. 1929. 6 g blue, 30 g violet, 1 s blue and 2 s green. Graf Zeppelin headed to VIENNA. On the front it marks LUFTSCHIFF GRAF ZEPPELIN / MITTELMEERFAHRT 1929, in pink and date stamp FRIEDRICHSHAFEN, on the back SEVILLA transit. MAGNIFICENT.