- collectionA1138 - James Charles Napoleon Humphreys, Mining papers
- Série organiqueC - Roodepoort Area
- Dossier105 - Consolidated Main Reef Mines & E. Ltd.
- 6 en plus...
- Pièce105.7 - Underground workings of Main Reef Leader and South Reef
- Pièce105.8 - Underground workings of Bird Reef
- Pièce105.9 - Underground workings of Main Reef Leader
- Pièce105.10 - Underground workings of South Reef
- Pièce105.11 - Underground workings of Bird Reef
- Pièce105.12 - Underground workings of Main Reef Leader
- Pièce105.13 - Underground workings of South Reef
- Pièce105.14 - Underground workings of Bird Reef
- Pièce105.15 - Underground workings of Main Reef Leader
- 11 en plus...