THE Ministry of Posts and Telecommunications of the People's Republic of China issued on May 7, 1976 a set of three stamps to commemorate the tenth anniversary of Chairman Mao's May 7 Directive. The...
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THE Ministry of Posts and Telecommunications of the People's Republic of China issued on May 7, 1976 a set of three stamps to commemorate the tenth anniversary of Chairman Mao's May 7 Directive. The...