(1969, British Pathe) Footage of unique Walsall Corporation 56 (XDH56G) on route 118, a 36 foot long Daimler Fleetline CRC6-36:

It was supplied to Walsall before Daimler shipped a batch of similar buses to South Africa. As can be seen from the screencaps here, the Northern Counties body had a front entrance and rear exit, and two staircases. CCTV cameras were fitted to allow the bus to be driver only operated.