I was more than happy to take this photograph. It shows "Tornado" (A1) 60163 hauling "Mallard" (A4) 4468/60022 just south of Thirsk and headed for The National Railway Museum in Shildon on June 23rd, 2010. "Mallard" was there for just over a year. She returned to the main hall at the NRM in York on July 22nd, 2011.

A remarkable event to capture, Stan.

This photograph was taken in June 2013 following her boiler maintenance. She is seen here hauling "The Elizabethan" northbound just outside of Thirsk.

The A1 "TORNADO (60163)" hauling the "Tees-Tyne Express" northbound through Ferryhill on Saturday, October 7th, 2017. She'd travelled from Derby to York and was on her way to Newcastle.