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- collectionA1138 - James Charles Napoleon Humphreys, Mining papers
- Série organiqueA - West Rand Producers
- Dossier2 - West Rand Consolidated
- 6 en plus...
- Pièce2.7 - Underground workings of Main Reef
- Pièce2.8 - Underground workings of South Reef
- Pièce2.9 - Underground workings of Battery and Bird Reef
- Pièce2.10 - Underground workings of Main Reef
- Pièce2.11 - Underground workings of South Reef
- Pièce2.12 - Underground workings of Battery and Bird Reef
- Pièce2.13 - Underground workings of Main Reef
- Pièce2.14 - Underground workings of South Reef
- Pièce2.15 - Underground workings of Battery and Bird Reef