More than 100 previously unseen photographs of the Beatles on the set of their 1965 film Help! could fetch up to #15,000 at auction in Merseyside.
Taken in March that year, the collection shows the Fab Four in Obertraun, Austria, during the shooting of their musical comedy adventure.
Wrapped in thick black coats and wearing caps and sunglasses, the 124 black-and-white 35mm negatives show John Lennon, Paul McCartney, George Harrison and Ringo Starr shooting scenes against a backdrop of snow-capped mountains.
The photos, taken by German photographer Bernd Kappelmeyer, are expected to fetch between £10,000 and £15,000 when they go under the hammer at Omega Auctions in Newton-Le-Willows.
They come as part of a haul of Beatles memorabilia, which includes an original sign from Abbey Road and a set of costume patterns for the psychedelic suits worn by the group on the cover of their album Sgt. Pepper's Lonely Hearts Club Band.
The lots, which are to be sold separately, will go under the hammer next Tuesday.