North Vietnam, 30 Years Democratic Republic Vietnam, September 2nd, 1975, Michel Nr. 821-823; Three stamps all with a 12 xu nominal were issued in perforation 11.0. There was also…
National Liberation Front, 30 Years Democratic Republic Vietnam, Michel Nr. NLF 55-58; Three stamps in the nominals of 15D (issued September 2nd, 1975), 30D, 60D and 300D (all…