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Historical Papers Research Archive, University of the Witwatersrand James Charles Napoleon Humphreys, Mining papers
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James Charles Napoleon Humphreys, Mining papers
James Charles Napoleon Humphreys, Mining papers
West Rand Producers
West Rand Producers
Randfontein Estates
Randfontein Estates
Underground plan, Battery Section (Rietvlei no. 113)
Underground plan, Battery Section (Rietvlei no. 113)
Underground plan of Leader, Horsham and East Reef workings
Underground plan of Leader, Horsham and East Reef workings
Underground plan of Leader, Horsham and East Reef workings
Underground plan of Leader, Horsham and East Reef workings
Underground plan of West Reef, Lindum Reef and Black Reef workings
Underground plan of West Reef, Lindum Reef and Black Reef workings
Underground plan of Leader, Horsham and East Reef workings
Underground plan of Leader, Horsham and East Reef workings
Underground plan of West Reef and Lindum Reef workings
Underground plan of West Reef and Lindum Reef workings
West Rand Consolidated
West Rand Consolidated
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