Chris Hough enquires whether anyone remembers "an advert for the NBC in the late sixties when the poppy red and leaf green liveries were introduced? It featured one bus from each constituent company and included such gems as West Yorkshire Bristol FS Lodekkas and the slogan 'Together we can really go places'."
Kim Rennie adds "This was in the early/mid-1970s (after all the corporate livery was only devised circa 1972). I believe one of London Country's SM-class single deckers was specially delivered in NBC green to appear in this, unlike the rest of the batch which were dark green with yellow waistbands. The location was almost certainly an airfield or possibly some sort of vehicle testing site." Any more information?