165012 emerges from Ardley Tunnel on 29 October 2008, whilst working the 12:54 Marylebone to Stratford-on-Avon Chiltern Railways service. After a bright start, high cloud had rolled in from the west shortly after midday and the sun gradually disappeared. I therefore chose this location, as due to the tree lined cutting on the approach to the tunnel it would be very difficult to take pictures here if the sun was out - certainly at this time of year. A convenient field access bridge crosses the line just in front of the tunnel giving this excellent viewpoint.