Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 162,260 pages of information and 244,501 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 Dyllas Colliery, Aberdare
1920 Company registered to hold the coal mining interests of David Richard Llewellyn
1930 Amalgamated with other collieries to form Welsh Associated Collieries
Part of the David R. Llewellyn Group.
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