| Airmails - World | 1975 (25 - 27 Apr) Switzerland - China, PRC. Lupo 75 Exhibition 0,65fr blue air lettersheet stationery, various cachets + PRC retour tied label. VF. |
U$ | 16 |
| Airmails - World | 1975 (25 - 27 Apr) Switzerland - China, PRC. Lupo 75 Exhibition 0,65fr blue air lettersheet stationery, various cachets + PRC retour tied label. VF. |
U$ | 16 |