"Sharon & Gordon Thomson" wrote in
message ...
Anyone know of examples where Diesel Units have travelled over lines in
the
London Area normally the preserve of electric traction. For example would
they have been permitted to use the East London Line, any of the other LU
stretches or the route through Snow Hill tunnel?

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Services over the Widened Lines into Moorgate were both DMU and loco worked
until the late 70s.