Bulleid No 34111 Royal Auxiliary Air Force 

Originally, this locomotive was known as Bulleid Battle of Britain Class Light Pacific No. 34081 “92 Squadron.”
However, to mark the forthcoming centenary of the service, it has been temporarily renamed and renumbered as No. 34111 “Royal Auxiliary Air Force.”
The Nene Valley Railway (NVR) is a preserved railway in Cambridgeshire, England, running between Peterborough Nene Valley and Yarwell Junction. The line is 7+1⁄2 miles (12.1 km) in length. There are stations at each terminus, and three stops en route: Orton Mere, Ferry Meadows and Wansford.
nvr.org.uk/