An ink on paper sketch by John Lennon of the Sgt. Pepper’s Lonely Hearts Club Band album cover with Lennon’s handwriting of the album’s title on the central bass drum in the image. The drawing was found in a sketchbook left in Lennon’s former home, Kenwood in Surrey, England, and recovered by the new owners. The design of the album cover is known to have been executed by artist Peter Blake based on drawings provided by Paul McCartney. 

All of The Beatles contributed to the design of the cover in some way. It is unknown how this undated drawing figures into the history of the album cover and Lennon’s involvement. In a 1967 press launch interview, Lennon was quoted as saying “Sgt. Pepper’s Lonely Hearts Club Band is one of the most important steps in our career. It had to be just right. We’ve tried, and I think succeeded, in achieving what we set out to do.” Accompanied by a letter of authenticity from Perry Cox.

4 1/4 by 4 1/4 inches
Link: here.