Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 136,379 pages of information and 219,138 images on early companies, their products and the people who designed and built them.
of Blackhall Iron Works in Dublin.
Proprietors: William Courtney and William Stephens (dates not specified). In 1877 they supplied signalling equipment for B&LR (Ballymena & Larne Railway)