Clocks: a Smeaton-Franklin clock face (left), and mechanism (right). Engraving by A. Bell, ca. 1798.

Date:
[1798?]
Reference:
40898i

Licence: Public Domain Mark

Credit: Clocks: a Smeaton-Franklin clock face (left), and mechanism (right). Engraving by A. Bell, ca. 1798. Wellcome Collection. Source: Wellcome Collection.

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