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The study presents the work of Jan Marian Hempel (12.12.1818-19.01.1886). The particular focus of the study is on the archival materials concerning the history of the industrial districts of the Kindgom of Poland, and on a number of geological and mining maps. Jan Hempel started work in the mines of the Western (Industrial) District of the Kngdom of Poland in 1840. He was employed as, among other...
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