解説13.04.81 London Marylebone Class 115 (12331491743).jpg
Over 40 of these 4-car high density sets were built by British Rail at Derby works from 1960 and saw work until 1998. Used exclusively on services from London Marylebone through to Aylesbury and Banbury via High Wycombe.
Seen on 13 April 1981 is a set at Marylebone station in London.