40013 at Manchester Piccadilly. ©Phil Sangwell
A fleet of 200 Class 40 locomotives were produced in the late-1950s and early-1960s for British Rail. The class were for a time, the pride of the early diesel fleet and saw great success in service. Despite this, by the time the last examples entered service, they were already being replaced on top-link services. The class saw use across most areas of the UK, although only very rarely in the Western and Southern regions. By the mid-1970s the class were mostly used on services in the North of England. The 40s were withdrawn by the end of 1985 and seven were preserved.
(Information provided by Wikipedia)