'The Mallard' 4-6-2 steam locomotive, no 4468,

'The Mallard' 4-6-2 steam locomotive, no 4468, built 1938. This clas A4 locomotive was designed by Sir Nigel Gresley (1876-1941), the chief mechanical engineer for the London & North Eastern Railway (LNER) and built at the railway's works in Doncaster. On Sunday 3 July 1938 the locomotive reached a speed of 126 mph on a straight stretch of track between Grantham and Peterborough, achieving a new world record for steam locomotives which remains unbroken to this day.