Stamps of Vietnam - North Vietnam, 4 base day
1 to 9 of 9
postage
1960, Sep 4 3rd Communist Party Congress issue unwmk (no perf info)
| - | 1xu | |||||
| - | 12xu |
1961, Dec 4 5th World Trade Union Congress issue
| - | 12xu | — | — | |||
| - | 12d | congress emblem |
1961, Dec 4 national resistance 15th issue
| - | 4xu | — | — | |||
| - | 12xu | — | — | |||
| - | 4d | |||||
| - | 12d |
1962, May 4
| - | 12xu | heroes of labor congress |
1 to 9 of 9