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Washing brown iron ore at the Shilovskii mine seven versts from the village of Makarovo, 1912. Creator: Sergey Mikhaylovich Prokudin-Gorsky.
HRM24A12_006

Washing brown iron ore at the Shilovskii mine seve...

An ore-washing plant in the mountains, Early 17th cen. Creator: Savery, Roelant (1576-1639).
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An ore-washing plant in the mountains, Early 17th ...

Miners in the Sierras, 1851-1852.
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Miners in the Sierras, 1851-1852.

Washing ore to extract gold, 1683. Artist: Unknown
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Washing ore to extract gold, 1683. Artist: Unknown