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Descripción archivística
Con objetos digitales James Charles Napoleon Humphreys, Mining papers
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Underground workings of South Reef
Underground workings of South Reef
Underground workings of South Reef
Underground workings of South Reef
Underground workings of Main Reef and Main Reef Leader
Underground workings of Main Reef and Main Reef Leader
Underground workings of South Reef and Bird Leader
Underground workings of South Reef and Bird Leader
Underground workings
Underground workings
Underground workings
Underground workings
Underground workings
Underground workings
Underground workings
Underground workings
Underground workings
Underground workings
Underground workings
Underground workings
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