Sir Peter Blake's original artwork for the insert of the Beatles' Sgt Pepper's Lonely Hearts Club Band album is coming to auction in November.
Blake produced the work for the 1967 album in addition to his more famous front cover, which displays the Beatles surrounded by a variety of famous faces.
The stunning collage, which has a high estimate of £80,000 ($129,709) ahead of the November 13 auction at Sotheby's London, offered fans a depiction of Sgt Pepper himself.
It comes from the collection of architect Colin St John "Sandy" Wilson, whose wife received the collage from Blake in the 1960s.
James Rawlin, Sotheby's senior specialist on modern British paintings, said: "Sir Peter Blake's collage is a tangible slice of rock history.
"Sgt Pepper had a huge impact on the cultural landscape. It was the first concept album, when music, story, image and studio expertise all came together.
"In this work we witness the creation of the eponymous Sgt Pepper himself, with his familiar accoutrements of moustache and sergeant's stripes, originally intended for fans to cut out and keep."
We're anticipating a strong performance for the collage, based on previous auction results for memorabilia from the album.
The Beatles' waxwork heads used on the cover of the album sold for £70,000 ($113,465) in 2005, while the drumskin featured on the cover beat its estimate almost four times over when it achieved £541,250 ($1.1m) in 2008.
View our stunning collection of Beatles memorabilia here, including this signed A Hard Day's Night album cover.