Should be a 17010:27 Sheffield , Doncaster,Goole ,brough,hull
They're very common on Hull to York services too!I’ve been staying on the east coast this weekend and most Scarborough - Hull services were a 155 although and 150 and a 158 appeared. All Sheffield - Brid services seen were 170’s.
Must say, having worked 155’s on Calder Valley’s, Harrogates, Knottingley’s etc over the last 20 years it was nice to see them in a different area.