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James Charles Napoleon Humphreys, Mining papers Item With digital objects
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Underground workings of Bird Reef
Underground workings of Bird Reef
Underground workings of Bird Reef
Underground workings of Bird Reef
Underground workings of Bird Reef
Underground workings of Bird Reef
Underground workings of Bird Reef
Underground workings of Bird Reef
Underground workings of Main Reef
Underground workings of Main Reef
Underground workings of Main Reef
Underground workings of Main Reef
Underground workings of Main Reef
Underground workings of Main Reef
Underground workings of Main Reef
Underground workings of Main Reef
Underground workings of Main Reef
Underground workings of Main Reef
Underground workings of Main Reef
Underground workings of Main Reef
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