| Airmails - World | 1937 (7 March) First flight GUINEA, Conakry - Senegal, Dakar (7 March) Single fkd 1,50fr rate env + 2 special cachet signed Feldkircher. VF. |
U$ | 36 |
| Airmails - World | 1937 (7 March) First flight GUINEA, Conakry - Senegal, Dakar (7 March) Single fkd 1,50fr rate env + 2 special cachet signed Feldkircher. VF. |
U$ | 36 |