London Underground 1967 Stock London Underground 1967 Stock The London Underground 1967 Stock was a type of deep-level tube stock which operated on the Victoria line of the London Underground from when the line first opened on 1 September 1968 until 30 June 2011. Some of the stock was also used on the Central line between Woodford and Hainault between 21 February 1968 and 1984, as the same automatic train operation (ATO) system was used on both lines. A total of 316 cars (39.5 train sets) were built by Metro-Cammell, and the stock was refurbished at Rosyth. Withdrawn cars of Mk I 1972 stock
Circle line (London Underground) with the other London Underground sub-surface lines: the Hammersmith & City line from Hammersmith to just before Aldgate; the Metropolitan line from Baker Street to Aldgate; and the District line from Tower Hill station to Edgware Road station. The line is electrified with a four-rail DC system: a central conductor rail is energised at and a rail outside the running rail at , giving a potential difference of . The running rails are not electrified. Much of the double track railway from the Hammersmith terminus to Westbourne Park station is on a high brick viaduct. East of Westbourne Park the