Fine Butterfield dial featuring standard three-scale arrangement and eight-pointed rose compass with cardinal and quadrantal points noted in French. The latitude scale on the gnomon is adjustable for latitudes 40°-60°. The reverse is finely engraved with a central acanthus rosette and spine. Cities listed are mostly in France, dial includes early spellings such as “Degrez.”
Henry Macquart (c.1660-1720) was a pupil of Pierre Sevin, receiving the title Engineer of instruments to the court and councils of his Majesty in 1688. He then became Ingénieur du Roi in 1691. His place of business was at the Quai des Morfondus at the sign of the Astrolabe in Paris. The astronomer Jean Mathieu de Chazelles (1657-1710) is recorded as having purchased a quadrant from Macquart in 1688. Macquart’s son-in-law and partner, Michel Cadot, continued his business by keeping the same sign.
Similar sundials can be found at the Royal Greenwich Museum:
Oxford Museum of the History of Science:
And in past sales:
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Instrumentum is based in the United States and specializes in high quality 17th and 18th century scientific instruments for architecture, mathematics and navigation. We have collected antique instruments for over 20 years with a focus on early and rare European architectural drafting sets, dividers, and rules. If you are interested in something particular please contact us at email@example.com. Image galleries of our inventory can be viewed on Pinterest and Facebook at the following links: