Duchess of Hamilton.

6229 was built in 1938 at Crewe as the tenth member of its class and the last in the second batch of five red streamliners (the original five 6220-4 having been given a unique Caledonian blue livery), complete with gold speed cheat stripes. In 1939 6229 swapped identities with the first of the class 6220 Coronation and was sent to North America with a specially-constructed Coronation Scot train to appear at the 1939 New York World's Fair. There was therefore for a while a blue 6229 Duchess of Hamilton in the UK and a red 6220 Coronation in the USA. R.A. Riddles drove for most of the tour, owing to the illness of the assigned driver. The locomotive (though not its carriages) was shipped back from the States in 1942 after the outbreak of the Second World War, and the identities of the locomotives were swapped back in 1943.

6229 was painted wartime black livery in November 1944. Her streamlined casing was removed for maintenance-efficiency reasons in December 1947 and she was then given the LMS 1946 black livery. In 1948 she passed into BR ownership. BR added 40000 to her number to become 46229 on 15 April 1948. She was painted in the short-lived BR blue livery in April 1950, but was soon repainted on 26 April 1952 into Brunswick green. The semi-streamlined smokebox was replaced with a round-topped smokebox in February 1957, and in September 1958 she was painted maroon. The lining was BR style to begin with then in October 1959 she received the current LMS style lining which she has carried for all her years in preservation.

@wikipedia