Coastal Red EOF275L, a Daimler Fleetline CRG6LX / Park Royal H43/33F, seen here on Clacton Circular route 50, with route adverts on the bus, in competition with Eastern National.
EOF275L was new in May 1973 to West Midlands PTE, fleet number 4275.

Photo taken by Eric Thompson, July 1987, Clacton