Might be a strange X66 running board with a 7 on the front of it, but if not it's 06:57 from ferryhill on a morning and 4656 is already on the 7
EDIT: Panic over, there is a X66 running board that has a 7 on the front of it, does the 06:57 service 7 then the 07:50 X66
RE: Arriva North East: Rare & Odd Workings - June 2017