In 1906, the Osram incandescent lamp was developed; its name was formed from the German words OSmium, from the element osmium, and WolfRAM, from the element tungsten (called wolfram in many languages and an alternative name in English).
The British company General Electric Company imported Osram filaments for their own production of light bulbs.
1908 Advertisement for Osram lamps by GEC [1]
1919 GEC took over Osram, including the Osram-Robertson Lamp Works [2]
In 1920, Auergesellschaft, Siemens & Halske, and Allgemeine Elektrizitäts-Gesellschaft (AEG) combined their electric lamp production with the formation of the company Osram.
1921 Osram GEC Lamp Works were at Hammersmith