London Underground rolling stock the 150th anniversary of the opening of the Metropolitan Railway special services ran in January 2013 using a restored 1892 "Jubilee" carriage, 1898–1900 bogie carriages, steam locomotive No. 1 and electric locomotive "Sarah Siddons". Further events are planned in 2013 for Locomotive No. 1, "Sarah Siddons" and the Jubilee carriage, including a "Steam back on the Met" scheduled for May. To celebrate the 150th anniversary of the District Railway the London Transport Museum are restoring a three-car Q Stock train to run on the District Line as special services during 2018. After the District Railway had electrified in 1907 it
London Underground diesel locomotives . London Underground diesel locomotives Diesel locomotives have seen limited use on the London Underground, largely because exhaust gases cannot be discharged when the vehicles are working in tunnels. A prototype diesel engine numbered DEL120 was built in 1939 from two 1915 stock motor cars, which was expected to be part of a batch of ten, but experience with battery locomotives showed that these were a better alternative. Three 0-6-0 diesels (DL81-DL83) were obtained in 1971, to replace the last steam engines, but were too short to operate the signalling system, and too heavy for some of the bridges. In