1968 (Oct 10) Cultural Revolution cover with Chairman Mao's quotation from Shandong Shanhsien to Kuyang in Inner Mongolia,f.w. W7-4 4c vertical pair on reverse, tied by Shantung Shanhsien cds. VF-F.
1968年10月10日文革語錄封自山東單縣寄內蒙古固陽,背貼文7長征直雙連,銷山東單縣日戳。上品。
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