A sketchpad used by Radiohead to jot down ideas for their second album, The Bends, is going under the hammer.
The sketchpad was found at an unused barn at a fruit farm in Oxfordshire where the band rehearsed The Bends in 1993.
A man, who had lent the group instruments and a PA sound system, was given the A2 sketchpad as he cleared the studio space at the end of their sessions.
He is now selling the piece of music memorabilia, which is expected to fetch over £10,000 (€11,500) and features hand-drawn drawings, chords and lyrics.
The man, who wishes to remain anonymous, said: "When the sessions were over I went to retrieve my equipment and 'clear out’ the room.
"The A2 sketchpad had been left" with "some carpeting that had been used as acoustic treatment.
"I was informed that anything remaining in the room was not required by the band and should be thrown away or kept by me if I so wished. I kept the sketch pad and discarded the carpeting.""
Experts say the sketchpad gives "an insight into a crucial period in the group’s history".
Workings for two unknown songs, Too Easy and Idiot Boy, are contained in its eight pages.
It also contains lyrics for some of the band's classic songs, including Street Spirit (Fade Out), and notes for an unreleased track, Dead Bank Clerk.
Their debut single, Creep, had been a huge success.
Auctioneer Paul Fairweather said: "The Bends was absolutely crucial to the band’s success and the notepad really gives an insight into the fascinating creative process that resulted in the creation of true classic of the genre."
A 1960 Fender Precision bass guitar used by Jonny Greenwood on the album is also going under the hammer.
A demo featuring unheard tracks from the band, when the group was called On A Friday, sold for £7,600 last month.
The items will be sold at Omega Auctions in their Music Memorabilia sale on February 23.