City & South London electric train, 1890.
© Science Museum / Science & Society Picture Library
Plate taken from the 'Illustrated London News'. The City & South London Railway opened the world's first deep-level electric railway on 18 December 1890. It ran from King William Street in the City of London, under the River Thames to Stockwell. The engine weighed about 12 tons, it was 14 foot long, 6 foot 8½ inches wide, and 8 feet 6 inch in height. Each axle was driven by its own motor. The construction of his line provided impetus to the use of electricity for railway work, and was also the forerunner of London's Underground railways, the line is now part of the Morden to Edgeware route.