Hayward's slide rule, 19th century. Made by
4 0 c m
 
24cm
actual image size: 16cm x 32cm

Hayward's slide rule, 19th century. Made by

© Science Museum / Science & Society Picture Library

Description

Hayward's slide rule, 19th century. Made by Hayward Brothers. A sliding scale of equivalents for weights.
 

Image Ref.

10210572
 

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