Description
Diagram 56 carriages ran as a triplet set with a D700 kitchen car (Comet B17BK) and a D36 restaurant first open (B17AK). They were known as Festival of Britain sets when first introduced and ran on premier services. They were branded RESTAURANT CAR centrally in the lower body panel.
They ran on B1 bogies and were reclassified as second class in 1956.
