A 1937 steam locomotive has run along the section of track where a another locomotive set an unbeaten world record 75 years ago. Bittern, an A4-class engine, a contemporary of Mallard, the world's fastest steam locomotive, set off from King's Cross station for York. Mallard set a record speed of 126mph near Grantham on 3 July 1938, which remains unbeaten to this day. Up to 250 people were on board the train, which reached 92.8mph.
A 1937 steam locomotive marks the anniversary of a speed record set 75 years ago.