LNER Class A4 4468 Mallard
London and North Eastern Railway locomotive numbered 4468 "Mallard" is a Class A4 4-6-2 Pacific steam locomotive built at Doncaster Works, England in 1938. It is historically significant as the holder of the world speed record for steam locomotives at .
History of rail transport in Great Britain 1923–1947
The first chief mechanical engineer of the LNER was Sir Nigel Gresley, who held the post for most of the LNER's life. He was noted for his "Big Engine" policy, and is best remembered for his large express passenger locomotives, many times the holder of the world speed record for steam locomotives. LNER Class A4 4-6-2 Pacific locomotive "Mallard" still holds the land speed record for a steam locomotive. Gresley died in office in 1941.