Clocks: side elevation of a dividing engine for setting out gearwheels. Engraving by Defehrt [after G. d'Heuland].

Reference:
40821i

Licence: Public Domain Mark

Credit: Clocks: side elevation of a dividing engine for setting out gearwheels. Engraving by Defehrt [after G. d'Heuland]. Wellcome Collection. Source: Wellcome Collection.

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