| LATVIA | 1928 (31 May) Riga - Russia, Petrograd (9 June) Air multifkd env, triangular air issue. Mail to Russia is scarce at this time. |
U$ | 100 |
| LATVIA | 1928 (31 May) Riga - Russia, Petrograd (9 June) Air multifkd env, triangular air issue. Mail to Russia is scarce at this time. |
U$ | 100 |