66175 has 67006 Royal Sovereign dead in tow, as it passes Wolvercote on 19 July 2013 with the 6M28 18:16 Hinksey to Bescot departmental working. Unfortunately this corresponded with a cloudy patch. I would normally not bother taking a picture is such circumstances (as happened with the Class 70 hauled freightliners that passed in similar light), but the inclusion of 67006 almost makes the picture worthwhile!