Unified Vietnam, Gold Fish, October 20th, 1977, Michel Nr. 931-938; Eight stamps with the nominals of 12 xu (two stamps), 20 xu, 30 xu, 40 xu, 50 xu,…
Unified Vietnam, Gold Fish, March 20th, 1990, Michel Nr. 2138-2143; Six stamps with nominals of 100D, 300D, 500D, 1,000D, 2,000D and 3,000D were issued in perforation 13 an…