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Archival description
Historical Papers Research Archive, University of the Witwatersrand James Charles Napoleon Humphreys, Mining papers Item With digital objects
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Underground workings
Underground workings
Underground workings
Underground workings
Underground workings
Underground workings
Underground plan shewing workings
Underground plan shewing workings
Underground plan shewing workings
Underground plan shewing workings
Underground plan of Upper Leader and Black Reef Leader workings
Underground plan of Upper Leader and Black Reef Leader workings
Underground plan of Upper Leader and Black Reef Leader workings
Underground plan of Upper Leader and Black Reef Leader workings
Underground plan of Upper Leader and Black Reef Leader workings
Underground plan of Upper Leader and Black Reef Leader workings
Underground plan of Main Reef Leader working
Underground plan of Main Reef Leader working
Underground plan of Upper Leader and Black Reef Leader workings
Underground plan of Upper Leader and Black Reef Leader workings
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