Geol. Survey 1906-Lydenbury Dist. Pilgrims Rest MacMac Belvede

• ZA HPRA A1138-N-473
• File

Part of James Charles Napoleon Humphreys, Mining papers

Geological Survey - Lydenburg - W. 2 N.W. Western Sekukunilan

• ZA HPRA A1138-N-468
• File

Part of James Charles Napoleon Humphreys, Mining papers

Geological Survey 1910 Klip River Valley West W.A. Humphrey

• ZA HPRA A1138-Y-862
• File

Part of James Charles Napoleon Humphreys, Mining papers

Geology Central Rand

• ZA HPRA A1138-E-180
• File

Part of James Charles Napoleon Humphreys, Mining papers

Geology of Klerksdorp

• ZA HPRA A1138-J-361
• File

Part of James Charles Napoleon Humphreys, Mining papers

Geology of S.W. Transvaal - Holmes

• ZA HPRA A1138-Z-892
• File

Part of James Charles Napoleon Humphreys, Mining papers

Giant Reefs G.M. Co. , Ltd. Shingwedsi Game Reserve

• ZA HPRA A1138-L-426
• File

Part of James Charles Napoleon Humphreys, Mining papers

Glyns Lydenburg

• ZA HPRA A1138-N-464
• File

Part of James Charles Napoleon Humphreys, Mining papers

Gneiss Formation - Limpopo River - Zoutpansberg District

• ZA HPRA A1138-S-654
• File

Part of James Charles Napoleon Humphreys, Mining papers

Gold mining areas

• ZA HPRA A1138-G-270-270.1
• Item
• 31 December 1935

Part of James Charles Napoleon Humphreys, Mining papers