The D78 Stock of the London Underground's District Line
As delivered in 1980:
In the late 1990's, canvas barriers were added between the cars for added safety at platform level:
From 2004-2008, the fleet of D78 stock was overhauled, including a refurbished interior, applying the new Underground paint scheme, and the removal of now redundant door buttons:
These trains have now been replaced by the new S stock, the last D78 Stock train having run in regular operation in April of 2017.
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Worklist
"If people never did silly things nothing intelligent would ever get done." ~Ludwig Wittgenstein