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Citations

Descriptions and drawings of Mr Arnold's escapement and time-keeper, 1804 - 1805, GBR/0180/RGO 14/25: 3-49. Cambridge University Library.

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 February 24, 2024.

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