Unified Vietnam, Cats, November 10th, 1979, Michel Nr. 1063-1070; Eight stamps with the nominals of 12 xu (Two stamps), 20 xu, 30 xu, 40 xu, 50 xu, 60…
Unified Vietnam, Cats, June 16th, 1986, Michel Nr. 1684-1690; Seven stamps with nominals of 1D (two stamps), 2D, 3D (two stamps) and 5D (two stamps) were issued in…