Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,669 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.
of Ash Grove Sanitary Pipe Works, Elland
c.1906 Company started by Walter Thomas Knowles and later his three sons Vincent, Stanley and Gordon. Walter's father Thomas Knowles had a salt-glazed pipe business in Darwen.
1991 Director is Malcolm Knowles (c.1930- ). 50 employees.[1]
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