Grace's Guide To British Industrial History

Registered UK Charity (No. 115342)

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.

Johnson and Sons Assayers

From Graces Guide

of Finsbury, London

1743 Company established. There are three companies owned by the same family:

1889 Exhibited gold chloride, as separate individual crystals, perfectly dry-silver nitrate, and potassium cyanide.

1914 Assayers to H M Mint, the Bank of England and the Council of India. Specialities: Assaying, melting and refining gold and silver bullion; testing of metallurgical processes and ores; manufacturing of chemicals for assay and mining purposes, for photography, process work and electro-plating; packing of photographic chemical specialities and pure chemicals for general purposes. Employees 220. [1]

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