Calculating scale, 1807.

Image number: 10329166

Calculating scale, 1807.

A ready reckoner, made of boxwood weighted with brass, for calculating gross and tare weights of ship's cargoes, engraved; 'Robert Ludgate, Custom House, London, 1807'.

Image number:
Science Museum/Science & Society Picture Library
Date taken:
29 October 2003 12:16
Image rights:
Science Museum

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