North Vietnam, 15 Years Democratic Republic, September 2nd, 1960, Michel Nr. 137-141; A set of five stamps (one with 4 xu nominal and four stamps with 12 xu…
North Vietnam, 20 Years Democratic Republic of Korea, August, 1966, Michel Nr. II; A stamp in a 12 xu nominal was prepared for issuance in 1966 but was not…
North Vietnam, Roses, April 25th, 1968, Michel Nr. 526-531; Six stamps in the nominals of 12 xu (three stamps), 20 xu, 30 xu and 50 xu were issued…