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Folding Rule
Signed by Humfrey Cole
Dated 1575; London
Brass; 350 mm in length
This extremely accurate instrument is made up of flattened legs, marked with various inscriptions. By means of the scales inscribed on one face it is possible to calculate areas and volumes of timber used in construction.The markings on the other face of the instrument allow bearings to be taken. Each leg is provided with two folding sights which allow the instrument to be used for observations. The instrument is signed by Humfrey Cole, a map engraver and instrument maker in London.
Istituto e Museo di Storia della Scienza, Firenze
Inventory no. 2527
© Istituto e Museo di Storia della Scienza, Firenze. All rights reserved. Information and images provided here may not be reproduced in any form or by any means without the prior written permission of the museum.
Basic URL: http://www.mhs.ox.ac.uk/epact/catalogue.php?ENumber=42407 |
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