London Underground 1938 Stock times can be found at their website and people can sign up to receive the Museum's e-newsletter. A cab has been preserved at London Transport Museum. On 9 January 2013, 1938 tube stock appeared on a £1.28 British postage stamp as part of a set commemorating the 150th anniversary of the first London underground train journey. The stamp's captions read "Classic rolling stock" and "1938", with the caption's background in Bakerloo line colour. London Underground 1938 Stock The 1938 Tube Stock is a London Underground tube stock design. A total of 1,121 cars were built by Metro-Cammell and Birmingham RC&W.
Railway electrification system is provided by the running rails. On the London Underground, a top-contact third rail is beside the track, energized at DC, and a top-contact fourth rail is located centrally between the running rails at DC, which combine to provide a traction voltage of DC. The same system was used for Milan's earliest underground line, Milan Metro's line 1, whose more recent lines use an overhead catenary or a third rail. The key advantage of the four-rail system is that neither running rail carries any current. This scheme was introduced because of the problems of return currents, intended to be carried