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Miners extracting ore from a mine (8)

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Design for a painting in the Berlage fair, Amsterdam: "De Industrie," by Dutch painter, draftsman, and lithographer Richard Nicolaüs Roland Holst (1868-1938). In pencil and watercolor. The top portion represents the extraction of metals from ore, whereas the bottom shows the process of mining the ore. (Courtesy of the Rijkmuseum, Amsterdam, The Netherlands. Public domain. Edited by Dr. Douglas J Lanska.)