Vic Smith adds "70035 is on the down heading towards Doncaster. If I am right it may be the move on transfer to Immingham 40B in October”. If so Norwich have done their best to prove a point and send an immaculate loco!

Further research suggests this could be a light engine running-in turn returning from Barkston Junction to Doncaster Works, hence the loco condition.
70035 (32A) was noted in Doncaster Works during March 1958, before transfer to March shed (31B) in June 1958.