Citations
Descriptions and drawings of Mr Arnold's escapement and time-keeper, 1804 - 1805, GBR/0180/RGO 14/25: 3-49. Cambridge University Library. |
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Descriptions and drawings of Mr Arnold's escapement and time-keeper, 1804 - 1805, GBR/0180/RGO 14/25: 3-49. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/109807 Accessed April 29, 2024. |