The British Rail Class 487 electrical multiple units were built by English Electric in 1940, for use on the Waterloo & City Line.

Twelve motor carriages (DMBSO), numbered 51-62, and sixteen trailers (TSO), numbered 71-86, were built. Trains were formed of various formations, from a single motor carriage, to pairs of motor cars with up to three intermediate trailers.

The Waterloo & City Line was operated as part of the BR Southern Division. Stock was painted in British Railways green livery, which was replaced by BR Blue in the 1970s. In 1986, the line came under the ownership of Network SouthEast, and their blue, red and white livery was applied to some stock.

By the 1990s the units were urgently in need of replacing. This came in the form of new Class 482 two-car units, which were delivered to traffic in 1992/93. The final Class 487 vehicles were taken by road to Glasgow for scrap, which was their single longest journey above ground!

One vehicle, DMBSO no. 61, has been preserved by the National Railway Museum.