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Entrance to a small coal mine in China, 1999
Entrance to a small coal mine in China, 1999
A coal shipment underway in China, 2007
A coal shipment underway in China, 2007
Site of the former Ministry of Coal Industry in Hepingli, Beijing; the ministry was abolished in 1998
Site of the former Ministry of Coal Industry in Hepingli, Beijing; the ministry was abolished in 1998
A coal mine near Hailar District.
A coal mine near Hailar District.
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Bituminous coal, the most common coal grade
Bituminous coal, the most common coal grade
Coastal exposure of the Point Aconi Seam in Nova Scotia
Coastal exposure of the Point Aconi Seam in Nova Scotia
Coal miner in Britain, 1942
Coal miner in Britain, 1942
Coal production of the world in 1908 as presented by The Harmsworth atlas and Gazetter
Coal production of the world in 1908 as presented by The Harmsworth atlas and Gazetter