Restoring the Tate's Whistler mural
19 November 2013 Last updated at 00:34 GMT
A huge mural, painted by Rex Whistler in the Tate Britain's restaurant, has been restored as part of the gallery's £45m revamp.
Entitled The Expedition in Pursuit of Rare Meats, the frieze was painted in 1926 whilst Whistler was a student at the Slade.
Jim Diamond - who led the team that restored the painting - explained the process to BBC News.