Underground workings of South Reef
- ZA HPRA A1138-A-3-3.15
- Unidad documental simple
- 30 June 1939
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Underground workings of South Reef
Consolidated Main Reef Mines & E. Ltd.
Underground workings of Bird Reef
New Modderfontein Gold Mining, Co., Ltd.
Underground plan of Upper Leader and Black Reef Leader workings