Citations
Time ball and clock statistics, 1852 - 1861, GBR/0180/RGO 6/626. Cambridge University Library. |
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Time ball and clock statistics, 1852 - 1861, GBR/0180/RGO 6/626. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/98818 Accessed May 10, 2025. |