Citations
Copy of a letter to John Croker concerning a report by Earnshaw on his chronometer No. 813 which needed a new escapement, 1824-02-03, GBR/0180/RGO 5/233: 20r/2. Cambridge University Library. |
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Copy of a letter to John Croker concerning a report by Earnshaw on his chronometer No. 813 which needed a new escapement, 1824-02-03, GBR/0180/RGO 5/233: 20r/2. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/159203 Accessed April 19, 2024. |