North Vietnam, National Union Congress, May 1st, 1972, Michel Nr. 689-690; Two stamps in the nominals of 1 xu and 12 xu were issued perforated 11.0. Here is the…
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North Vietnam, National Union Congress, May 1st, 1972, Michel Nr. 689-690; Two stamps in the nominals of 1 xu and 12 xu were issued perforated 11.0. Here is the…