I always love your threads regarding liveries, Jonathan, which are always very informative. I believe the ends of the coaches would all have been black in variations of the green liveries and before, and maybe into the black and tan era? However, once we hit the supertrain livery some of the coaches would have had some degree of wraparound of the body color onto the ends, or painted ends, at least initially, (the Mk2ds come to mind.)