LMS No. 6229 Duchess of Hamilton was a Coronation class 4-6-2 Pacific built at Crewe Works in 1938.
It was one of the streamlined members of William Stanier’s powerful express-passenger class.
The locomotive’s original streamlined casing formed part of the LMS competition for prestige and speed on the West Coast Main Line.
In 1939 Duchess of Hamilton was selected for display at the New York World’s Fair and traveled to the United States with a train of British railway exhibits.
Wartime conditions prevented an immediate return, and the locomotive remained abroad longer than originally planned.
After returning to Britain, the streamline casing was later removed as maintenance priorities changed and the class was standardized in de-streamlined form.
The locomotive continued in regular express service until withdrawal in the 1960s.
It entered preservation and eventually became part of the National Railway Museum collection.
In the twenty-first century the museum restored the locomotive’s external streamlined appearance using historical drawings and research while preserving the underlying locomotive fabric.
For TransitSatellite, that modern streamlined appearance should be labeled as a historically informed reconstruction of the 1938 form, not evidence that all visible casing is original material from delivery.