Citations
Head gear rock shaft showing engine houses, 1891, GBR/0115/RCS/Y3059C/14. Cambridge University Library. |
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Head gear rock shaft showing engine houses, 1891, GBR/0115/RCS/Y3059C/14. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/217584 Accessed September 30, 2023. |