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With digital objects James Charles Napoleon Humphreys, Mining papers
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Underground workings
Underground workings
Underground workings of Bird Reef
Underground workings of Bird Reef
Underground workings of Main Reef and Main Reef Leader
Underground workings of Main Reef and Main Reef Leader
Underground workings of South Reef
Underground workings of South Reef
Underground workings of Bird Reef
Underground workings of Bird Reef
Underground workings of Main Reef and Main Reef Leader
Underground workings of Main Reef and Main Reef Leader
Underground workings of South Reef
Underground workings of South Reef
Underground workings of Bird Reef
Underground workings of Bird Reef
Underground workings of Main Reef Leader and South Reef
Underground workings of Main Reef Leader and South Reef
Underground workings of Bird Reef
Underground workings of Bird Reef
Results 61 to 70 of 502