Mining Development issue of China, PRC
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Short desc: Mining Development
Issuer: China, PRC Date: 12/29/1978 Consists of 4 stamps: (See stamps as list) 4f d=Old Tibetan peasant reporting to surveyor 8f d=Tunneling 10f d=Opencast mining 20f d=Coal transport All are perf=11x11.25 Record of changes |
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