DMBS: BR 635 and DTC: BR 645
The replaced Diagrams in 1980. DQ 204 and DTC: DS 304
Photographed as part of the British Railways Derby Works Collection. The exterior is M50400, presumably with M56155. If the interior images were taken at the same time, they would also be M56155.
Summary
Description
Interior
BR Diagrams & Works Pics
Numbering & Driving Instructions
Liveries
Operations
Allocations
Non-Passenger Use
Images
Details about preserved Class 103s can be found here.