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.
British Rail Class 501 jointly operated with London Underground's Bakerloo and District Lines. In 1970 the trains were converted to 3rd rail only operation, although the 4th rail was retained on sections of line which are shared with London Underground trains. The original electric scheme on these lines was at 630V DC, which was actually supplied at +420V in the outer electric rail and -210V in the centre one, a total potential difference of 630V. This was the same system as used at the time (and still employed today) by London Underground, and allowed Underground trains to run over the lines, from Queens Park