Clocks: a Smeaton-Franklin clock (top), and a Ferguson clock (below). Engraving by J. Taylor.

Date:
1 January 1810
Reference:
40896i

Licence: Public Domain Mark

Credit: Clocks: a Smeaton-Franklin clock (top), and a Ferguson clock (below). Engraving by J. Taylor. Wellcome Collection. Source: Wellcome Collection.

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