Thank you Philipe, most appreciated!
Also does anyone know what this was today (again 21/02)
Realtime Trains provides live realtime running information for the Great British railway network using open data.
www.realtimetrains.co.uk
Headcode would be most useful, and roughly what it was, don't need numbers, just loco and wagon types (and how many) if known, I can only assume it was a Cl.66 engineers set, and with a near 20 minute reversal at Bolton, I wonder if it was one loco, and ran around the set at Bolton?