John Lennon's handwritten lyrics for the Beatles song I'M ONLY SLEEPING are expected to fetch up to $525,000 (£350,000) when they go up for auction in London next month (Dec10).
The late rocker scribbled down the words on the back of a phone bill demanding payment for an outstanding bill.
The note's value is estimated at between $375,000 and $525,000 (£250,000 and £350,000).
The Fab Four's 1964 Ivor Novello Award for songwriting for their hit single She Loves You is also among the memorabilia going under the hammer in the Bonhams auction, and is thought to be worth up to $75,000 (£50,000), while a second trophy, their 1968 win for She's Leaving Home, carries an estimated price tag of $30,000 (£20,000).
Other items in the 15 December (10) sale include a list of Lennon's personal expenses for doctor's fees for his son Julian, and a note of payments to his first wife Cynthia.
That is expected to sell for a maximum of $22,500 (£15,000).