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A Thomas Wright brass rule/protractor, English, circa 1730, image 1
A Thomas Wright brass rule/protractor, English, circa 1730, image 2
Lot 45

A Thomas Wright brass rule/protractor,
English, circa 1730,

29 August – 9 September 2025, 12:00 BST
Online, London, Knightsbridge

Sold for £704 inc. premium

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A Thomas Wright brass rule/protractor, English, circa 1730,

signed Made by Tho Wright, Instrument Maker to his MAJESTY, on the front face engraved with a double 180 degrees protractor scale and five scales for 50,45,40,35 and 30 parts of an inch within wheat ear border, the reverse with scales for rhumbs, equal parts, chords, line of longitude, sines, secants and tangents, 15.2 x 4.5cm (6 x 1 3/4in)

Footnotes

Provenance:
Lot 229, Sworders, Stansted Mountfitchet, UK 16th February 2010.

Thomas Wright was apprenticed to John Rowley in 1707 in the Broders' Company and was freed in 1715. From 1718-1748 he had a workshop at the sign of "The Orrery & Globe" in Fleet Street. He was granted a royal appointment to the Prince of Wales and George II in 1727.

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