Eastern National MN1450, BPU24B, which started life in June 1964 as a coach with Tillings Transport T330, renumbered as T310 in January 1966 and passed into the ENOC fleet as 310 in February 1970. Then in October 1974 it was converted by Marshalls with power doors and roof mounted destination boxes as seen in the photo.

Photo taken by Chris Stewart, Thursday 16 December 1976, Chelmsford