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 140,671 pages of information and 227,383 images on early companies, their products and the people who designed and built them.

John Hynam

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1869.

John Hynam of 7, Princes Square, Finsbury, London.

Maker of crucibles for molten metal

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