. English: Fleuron from book: A description of pocket and magazine cases of mathematical drawing instruments; in which is explained the use of each instrument, and Particularly of the Sector and Plain Scale, in the Solution of a Variety of Problems; Likewise, the Description, Construction, and Use, of Gunter's Scale. Illustrated with copper-plates. By J. Barrow, Private Teacher of the Mathematics. 84 A description of pocket and magazine cases of mathematical drawing instruments; in which is explained the use of each instrument Fleuron T109900-9

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Photo credit: © The Picture Art Collection / Alamy / Afripics
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