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 steam road vehicles
In 1858 Thomas Rickett of Buckingham built the first of several steam carriages. Instead of looking like a carriage, it resembled a small locomotive. It consisted of a steam-engine mounted on three wheels: two large driven rear wheels and one smaller front wheel by which the vehicle was steered. The whole was driven by a chain drive and a maximum speed of twelve miles per hour was reached. The weight of the machine was 1.5 tonnes and somewhat lighter than Rickett's steam carriage.