https://creativecommons.org/publicdomain/zero/1.0/ https://www.rawpixel.com/image/428202 ![Dial construction guide Construction of Dials (1809) from the book by John Wilkes (1725-1797), time measurement chart shown in geometric charts and…]()

Construction of Dials (1809) from the book by John Wilkes (1725-1797), time measurement chart shown in geometric charts and shapes. Digitally enhanced from our own original chromolithograph.
Free Public Domain CC0 Image
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- 428202