Viser nå: Nord-Vietnam - Portofrimerker (1952 - 1958) - 11 frimerker.
April VM: Ingen Perforering: 11½
April VM: Ingen Perforering: 11½
July VM: Ingen Perforering: 12½
Viser nå: Nord-Vietnam - Portofrimerker (1952 - 1958) - 11 frimerker.
April VM: Ingen Perforering: 11½
April VM: Ingen Perforering: 11½
July VM: Ingen Perforering: 12½