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 162,257 pages of information and 244,498 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.

Roland Sydney Portham

From Graces Guide

Engineer of 22, Billiter street, London, E.C. [1]

1917 Patented Evaporative Condensers. [2]

See Also

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Sources of Information

  1. The Engineer 1919/01/24
  2. The Engineer 1919/01/24