| Airmails - World | 1928 (31 May) Dominican Republic - Puerto Rico, San Juan (31 May) 1st flight multifkd env signed Ricot BL Rowe. |
U$ | 30 |
| Airmails - World | 1928 (31 May) Dominican Republic - Puerto Rico, San Juan (31 May) 1st flight multifkd env signed Ricot BL Rowe. |
U$ | 30 |