| 11. | It is the only deep-level tube stock to use selective door opening, for example at,, and.
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| 12. | These ran from 1967 until replaced in 1989-90 with 1938 tube stock, formed into two-car units.
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| 13. | Since the reopening of the line in 1967, former London Underground Tube stock has been used.
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| 14. | A further 33 trains of 1972 Tube stock were ordered to provide service on the Jubilee line.
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| 15. | Trains access the depot by a tunneled branch line to the north of 2009 Tube Stock trains.
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| 16. | At the time, London Transport had some surplus standard tube stock and British Railways bought 55 cars.
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| 17. | A Stock may be outlasted by the InterCity 125 HSTs and the Bakerloo Line 1972 tube stock.
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| 18. | Like D Stock, the 1983 Tube Stock had single leaf doors, a similar orange interior and cab design.
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| 19. | In the 1980s these trains were replaced by more redundant LT tube stock, this time dating from 1938.
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| 20. | Even after freight traffic had ceased, the line continued to be used to transfer empty tube stock between lines.
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