occurred, all of the 1972 Stock was used to operate the Jubilee line, and Stonebridge Park depot held a full complement of 1938 Stock. A temporary decrease in passenger numbers on the underground generally saw service reductions introduced from December 1982, and spare trains of 1959 Stock were transferred to the Bakerloo. The first train arrived at the depot on 5 December 1982, to allow crews to be trained, and the units entered service on 28 February 1983. By 3 October 1983, 15 trains had been transferred, and 14 trains of 1938 Stock had been withdrawn for scrapping. When delivery of 1983 Stock began, to re-equip the Jubilee line, 1972 Stock was moved to the Northern line, and displaced 1959 Stock was transferred to the Bakerloo. All 1938 Stock had left the depot and the line by 20 November 1985. From early 1987 onwards, the depot saw regular visits of 1972 Mark 1 Stock, which were transferred from the Northern line for overhaul. A second batch of 1983 Stock was ordered for the Jubilee line, allowing 1972 Mark II Stock to be transferred to the Bakerloo and Stonebridge Park depot, and this transfer was completed by March 1989. Unusually, the trains are turned to run on the Bakerloo, with the 'A' end facing south and the 'D' end facing north. This allows shunting within the depot to be carried out from a middle driving motor car of a four-car unit, rather than from the shunting cabinet on an uncoupling non-driving motor car of a three-car unit. The 33 trains of 1972 Mark II Stock were supplemented by a modified train of 1972 Mark I Stock in 1989, which was renumbered to follow the numbering sequence of those already on the Bakerloo. It is unclear where they were all stored, since Hardy in 1993 lists the 34 trains under stock allocation but only accounts for 28 under depot allocation, ten at Stonebridge Park depot, seven at Queen's Park depot, nine at London Road depot, and two on sidings at Elephant and Castle. A similar anomaly occurs in 2002, when he lists 36 trains but only 32 in the depot allocation. By this time, 12 trains were stabled at Stonebridge Park depot, seven at Queen's Park depot, ten at London Road, now downgraded to sidings, and three at Elephant and Castle. References Bibliography Railway depots in London London Underground depots Transport in