Explanations of time-keepers, constructed by Mr. Thomas Earnshaw and the late Mr. John Arnold / Published by order of the Commissioners of Longitude.
- Earnshaw, Thomas, 1749-1829.
- Date:
- 1806
Licence: Public Domain Mark
Credit: Explanations of time-keepers, constructed by Mr. Thomas Earnshaw and the late Mr. John Arnold / Published by order of the Commissioners of Longitude. Source: Wellcome Collection.
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