Beaconsfield station, pictured on 22 June 1991, with the 16:24 Marylebone to Aylesbury Network SouthEast service leaving, led by 51668. The removal of the through lines in 1974 as part of the downgrading of the former GWR London to Birmingham route, has left the station with an extremely open and desolate look. The Class 115s, for so long the staple rolling stock on this line, would be replaced shortly after this picture was taken by the then new Class 165 Turbo units.