Electric light at the British Museum, London, 1890.
© Science Museum / Science & Society Picture Library
Plate taken from the 'Illustrated London News' (Vol 90, 1890). 'In 1899, following presure in Parliament for the evening opening of the British Museum, 5000 pounds was voted for the provision of the necesary electric lighting. The resulting system, designed by W H Preece, consisted of two independent generating sets, active and stand-by, each consisting of a steam engine driving a pair of Siemens dynamos in parallel, capable of supplying 450 amperes at 130 volts'.