Disambiguation evidence for British Rail Mark 3 coaching stock via surface form

"British Rail Mark 3 sleeping coaches"

Triples (2)

Triples where some other subject referred to this entity as "British Rail Mark 3 sleeping coaches".

CAF Mark 5 sleeping coaches → replaced →
"British Rail Mark 3 sleeping coaches"
ⓘ
British Rail Mark 2 sleeping coaches → successor →
"British Rail Mark 3 sleeping coaches"
ⓘ