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With digital objects James Charles Napoleon Humphreys, Mining papers
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Bailey Lonrho Group
Bailey Lonrho Group
Benguela Railway Co.
Benguela Railway Co.
Gold mining areas
Gold mining areas
Plan of holdings with boreholes, shafts and underground development
Plan of holdings with boreholes, shafts and underground development
Plan of Houtpoort section with boreholes, shafts and underground development
Plan of Houtpoort section with boreholes, shafts and underground development
Plan of workings
Plan of workings
Plan of workings
Plan of workings
Plan of workings
Plan of workings
Plan of workings
Plan of workings
Plan of workings
Plan of workings
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