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File:Marquois Scales.jpg

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Captions

Captions

A set of Marquois scales, shown stored in their case with other drawing instruments (top) and on their own (bottom)

Summary

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Description
English: Example of Marquois scales, a mathematical drawing instrument of widespread use in Britain in the 19th century. This set is by Stanley of London for H. M. Government. Seen at top is the case of drawing instruments with the Marquois scales stored in the lower layer. Seen below is the Marquois scales themselves, which consist of two rulers (each with multiple scales) and a right-angle triangle with sides at a 3:1 ratio, made of boxwood.
Date
Source Own work
Author Justin Fisher

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current05:11, 27 December 2021Thumbnail for version as of 05:11, 27 December 20213,000 × 4,001 (2.08 MB)Odd.stuff (talk | contribs)Uploaded own work with UploadWizard

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