4920 Dumbleton Hall is a GWR 4900 Class 4-6-0 steam locomotive, built by the Great Western Railway's Swindon Works in March 1929.

It was withdrawn from British Railways service in December 1965 and sold to Woodham Brothers scrapyard in Barry, Wales.

It was purchased by the Dumbleton Hall Preservation Society,[1] and left as the 82nd departure from Barry in June 1976 before being fully restored in 1992 for service on the Dartmouth Steam Railway.

In February 2021 it moved to Carnforth for cosmetic restoration by West Coast Railways.

In December 2021 it was exported from Southampton to Japan where it will form part of a Harry Potter static exhibit at Warner Bros Studio Tour in Tokyo.