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Archivistische beschrijving
James Charles Napoleon Humphreys, Mining papers Stuk Tekst With digital objects
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Underground workings
Underground workings
Underground workings
Underground workings
Underground workings of Main Reef and Main Reef Leader
Underground workings of Main Reef and Main Reef Leader
Underground workings of Upper Leaders
Underground workings of Upper Leaders
Underground workings of Main Reef and Main Reef Leader
Underground workings of Main Reef and Main Reef Leader
Underground workings of Upper Leader
Underground workings of Upper Leader
Underground workings of Upper Leaders
Underground workings of Upper Leaders
Underground workings
Underground workings
Underground workings
Underground workings
Underground workings
Underground workings
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