A collection of prints by Pablo Picasso is expected to fetch around £2.5 million when they are auctioned later this year.
The 57 works by the Spanish artist will be sold at Sotheby's in New Bond Street, London, on September 16.
James Mackie of Sotheby's London prints department said: "We are thrilled to be selling this superb collection of works by Pablo Picasso, which is characterised by a range and quality the like of which has not been seen at auction for many years.
"We are particularly excited to have the opportunity to offer what are certainly Picasso's most important and groundbreaking graphic works. This unique event will undoubtedly create great interest as we tour the highlights around the world."
One of the main features of the sale is expected to be a signed etching from 1937 called La Femme Qui Pleure (Weeping Woman), which is predicted to sell for up to £700,000.