A number of John Lennon's personal items are set to be auctioned at Christie's in London this Thursday.

Two letters, in which the Beatles star spoke of his first marriage, could fetch up to £30,000, it has been estimated.

They were written to his first wife Cynthia and his cousin Leila in 1975 and 1976 respectively.

Other items set to go under the hammer include a shirt worn by Lennon during the recording of 'She Loves You' and a rare copy of 'Hard Days Night' signed by all four Beatles.