Commercial and technical developments on British Rail: new freight loads, air conditioned carriages, an ultrasonic test-train for checking the permanent way, a lecture train, and a new station for motorists - all part of the railway scene in the 1970's.
7.6
7.4
7.9
6.2
6.2
7.8
7.6
6.8
6.5
7.0
6.5
7.5
7.1
7.5
7.2
7.1
7.8
7.4