Flying Scotsman was the first express passenger locomotive to be built by the then newly formed London and North Eastern Railway in 1923. Designed by Sir Nigel Gresley, then Chief Mechanical & Electrical Engineer at LNER, the Flying Scotsman was the first locomotive to carry LNER's famous apple green livery. It was chosen by the LNER to represent the latest in steam locomotive design at the British Empire Exhibitions at Wembley in 1924 and again in 1925.
In 1928, 4472 was fitted with a unique corridor tender to enable it to haul the first non-stop train from King’s Cross to Edinburgh on 1st May. This was the longest non-stop run in the world. Two crews were required for the journey; using the corridor to change over at Tollerton, near York. Driver Albert Pibworth was at the controls from King's Cross to Tollerton. Driver Tom Blades took over from Tollerton to Edinburgh Waverley.