Rare and unpublished early colour photos of The Beatles on tour are to be sold at auction.
They were taken during the Fab Four's triumphant summer 1964 visit to the US, when most early photos of the band, and even films, were in black and white.
Colour was more expensive and seen as too extravagant for a pop group from Liverpool - who many felt were just a passing fad.
After breaking TV viewing records with their historic appearance on the Ed Sullivan Show in February 1964, the band returned to the US in August, playing sell-out concerts.
The collection of 65 slides contain many stage shots, including George Harrison with his red Rickenbacker, first used in the film A Hard Day's Night.