Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 144,326 pages of information and 230,176 images on early companies, their products and the people who designed and built them.

W. J. Ledward

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W. J. Ledward of Middlesbrough-on-Tees.

Sole Agent for 'Gauntlett's Patent Pyrometer or Heat Gauge'.

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