LMR - The DMBS was to diagram 556 (same as the 3-car sets) and the DTCL to diagram 585:
ER - These had the DMBS to diagram 557 and the DTCL to diagram 581:
The DMBSs differed in that the LMR vehicles had a sliding into the front (non-smoking) saloon, the ER sets didn't. The DTCs differed as the ER vehicles had a luggage rack opposite the toilet.
These replaced Diagrams in 1980.
LMR DMBS - DQ 205 (same as the 3-car sets), DTCL - DS 305 (DS 205 when downgraded to DTSL):
(I don't have a copy of DS 305)
ER DMBS - DQ 206, DTCL - DS 306:
These were taken at Cleobury Mortimer on the Tenbury Wells branch judging by what can be seen outside, a common location for BRC&W offical images. There are many images missing from this set, please get in touch if you can help with any of the missing ones.
The first two are of a London Midland Region set, circa March 1958:
The remaining images are of an Eastern Region set, circa May 1958:
Summary
Ordering Details
Description
Interiors
Modifications
Single Engine Conversion
2-car diagrams & Works Pics
3-car diagrams & Works Pics
4-car diagrams & Works Pics
Numbering & Drivers Instructions
Liveries
Operations - Early Days
Operations - Later Days
Operations - Scotland
Accidents
Decline
Non-Passenger Use
Images
Details about preserved Class 104s can be found here.
Many thanks to Kevin Dowd for his assistance in the preparation of these pages, and to Eddie Knorn for further data.