Grace's Guide To British Industrial History

Registered UK Charity (No. 1154342)

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,675 pages of information and 247,074 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.

Thomas McDowell

From Graces Guide
February 1931. Duct Work.

1958 Old established ventilation engineers; acquired by Richard Crittall and Co[1]

See Also

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Sources of Information

  1. The Times, May 12, 1958