Showing 80 results

Archival description
Historical Papers Research Archive, University of the Witwatersrand James Charles Napoleon Humphreys, Mining papers Series
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Manganese
Manganese
Tin
Tin
Diamonds
Diamonds
Silver
Silver
Commercial Companies
Commercial Companies
General Mining Covers (1)
General Mining Covers (1)
Metallurgy
Metallurgy
Chrome in Rhodesia
Chrome in Rhodesia
Portuguese West Africa
Portuguese West Africa
British East Africa
British East Africa
Results 71 to 80 of 80