'The Record Breaking Run of Mallard', 1938.
© NRM / Pictorial Collection / Science & Society Picture Library
Watercolour painting by the Australian railway artist, Phil Belbin (1925-1993). The A4 Pacific class Mallard was designed by Sir Nigel Gresley (1876-1941), the chief engineer of the London & North Eastern Railway (LNER). On Sunday 3 July 1938, the 4-6-2 locomotive reached a speed of 126 mph (203 kph) on a straight stretch of track between Grantham and Peterborough, achieving a new world speed record for steam locomotives which remains unbroken to this day.