Nord-Vietnam
Viser nå: Nord-Vietnam - Portofrimerker (1952 - 1958) - 22 frimerker.
VM: Ingen Perforering: 11½
VM: Ingen Perforering: 11½
April VM: Ingen Perforering: 11½
April VM: Ingen Perforering: 11½
July VM: Ingen Perforering: 12½
1. December VM: Ingen Perforering: 12½