British Railways Mark 1 sleeping car
Appearance
![](http://upload.wikimedia.org/wikipedia/commons/thumb/4/46/BR_Mk1_SLC.jpg/220px-BR_Mk1_SLC.jpg)
A Composite Sleeper or SLC, is a type of railway sleeping carriage with fixed bunks used by British Railways between the late 1950s and early 1980s.
Built in 1957 the BR Mk1 composite SLC sleeping cars had 11 compartments with a side corridor, two toilets at one end and an attendant's pantry at the other. The second class compartments had two bunks, the upper one folded down when required, and the first class compartment had a single bunk.
They were built on the standard Mk1 coach 63' underframe and weighed approx. 40 tonnes.
BR didn't include any sleeping cars in its Mk2 coach fleet hence these vehicles lasted well over 20 years until they were superseded by the Mk3 sleepers after 1979