Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 143,014 pages of information and 229,287 images on early companies, their products and the people who designed and built them.
Robertson Electric Lamps Ltd, of 31 Copthall Avenue, London, EC.
of Brook Green Works, Hammersmith, London.
By 1900 the works were producing 2 million lamps per year, of which half were "high voltage" lamps
1909 Death of Charles Robertson
1919 GEC took over Osram, including the Osram-Robertson Lamp Works.