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James Charles Napoleon Humphreys, Mining papers Item Text With digital objects
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Underground workings of Main Reef
Underground workings of Main Reef
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, Battery Section (Rietvlei no. 113)
Underground plan, Battery Section (Rietvlei no. 113)
Results 341 to 345 of 345