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S.M.C. Electric Lighting Salt water conduits P.H. No. 3. Plan showing junction of tunnel in rock
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S.M.C. Electric Lighting Salt water conduits P.H. No. 3. Plan showing junction of tunnel in rock (29/10/1920), [A-00533618]. City of Sydney Archives, accessed 28 May 2025, https://archives.cityofsydney.nsw.gov.au/nodes/view/1714591