| AUSTRIA | 1928 (21 May). Austria-Switzerland. First Flight. Wien-Zurich. Franked envelope. |
U$ | 25 |
Copyright © 2000-2010 - Philaton.com
| AUSTRIA | 1928 (21 May). Austria-Switzerland. First Flight. Wien-Zurich. Franked envelope. |
U$ | 25 |
Copyright © 2000-2010 - Philaton.com