This coach was delivered to Royal Blue, the express coaching subsidiary of Western/Southern National Omnibus Company being owned by Western National
It is fitted with a 7.7 litre AEC engine as specified by Royal Blue as Bristol were at this time still developing and proving their AVW engine
The coachwork, largely to Duple design, was contracted out to Beadles of Dartford as the coach building capacity during the post war recovery period and features staggered seating to allow a little more elbow room in the 7'6" width of the vehicle.