For the CCE&HR, 150 cars were built, also by American Car and Foundry.[2] Sixty were driving motors, fifty were driving trailers, and forty were trailers.
Only twenty cars, all driving motors, were converted for air-operated doors. These were all French built cars and were converted in 1920 for use with the 1920 stock. These lasted until 1930 when they were replaced by 'Standard Stock' driving motors.
A few of these cars were used as ballast motors while two were rebuilt into double ended cars and used on the Aldwych branch until the 1950s.
Although it was not the only stock to have gates, the 1906 Stock seemed to be the only one that earned the nickname "Gate Stock". Entry and exit was by the end platforms, being protected by lattice gates, and operated by gate-men stationed between cars. The gate-men opened and shut the gates as well as passing the signal to start from car to car until the driver received it.[3]
One anomaly remained until the 1980s as a reminder of the original "Gate Stock". This was the "Gateman's Allowance" paid under a 1927 agreement to the guards until around 1985, to compensate for the guard now having to operate all the doors on the train.
^Horne, Mike (2001). The Bakerloo Line: An Illustrated History. Capital Transport. pp. 12–13. ISBN1-85414-248-8.
^ abWolmar, Christian (2004). The Subterranean Railway: How the London Underground Was Built and How It Changed the City Forever. Atlantic Books. p. 188. ISBN1-84354-023-1.
^Day, John R; Reed, John (2008) [1963]. The Story of London's Underground. Capital Transport. p. 70. ISBN978-1-85414-316-7.