Unified Vietnam, Summit of Vietnam, Laos and Cambodia, March 25th, 1983, Michel Nr. 1306-1307; Two stamps in nominals of 50xu and 5D in basically the same design but…
Unified Vietnam, Friendship between Vietnam, Laos and Cambodia, August 30th, 1984, Michel Nr. 1477-1478; Two stamps with 50xu and 10D nominals were issued in perforation 10.75. Here is…