(20 Mar 2014, 3:37 pm)nk55 wrote 4908 replaced 4854 at 12.45 to operate the late 12.30 78 to sunderland. Assuming as dan said 4907 was also at chester, that was the freshly painted b10 heading out of chester depot at about 2.50 towards the A1 for a scholars run.
4908 removed from that duty in the afternoon as I saw it not in service with an engineer in command at around 15:40 while on a scholars service. The scholars run you saw heading down the A1 would have likely been the 462 for a Washington school.