North Vietnam, 3. Worker Congress, May 4th, 1962, Michel Nr. 214; A single stamp with a 12 xu nominal (standard domestic letter rate) was issued in perforation 11:0.…
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North Vietnam, 3. Worker Congress, May 4th, 1962, Michel Nr. 214; A single stamp with a 12 xu nominal (standard domestic letter rate) was issued in perforation 11:0.…