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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