| Chile - XX | 1928 (8 May) Test flight Panagra Airways May 28. Andes crossing Stgo - Buenos Aires, Argentina. Fkd env special cachet. Strated one of 78 such carried for Curtis-Wright flight. VF item. Ex Prof West airmails exhibit collection. |
U$ | 375 |
| Chile - XX | 1928 (8 May) Test flight Panagra Airways May 28. Andes crossing Stgo - Buenos Aires, Argentina. Fkd env special cachet. Strated one of 78 such carried for Curtis-Wright flight. VF item. Ex Prof West airmails exhibit collection. |
U$ | 375 |