A drawing by Salvador Dali, which he produced for Wallis Simpson in 1958 when they lunched together at the St Regis Hotel in New York, is to go on sale.
The work will auction at Hansons in the UK on September 27-28 with a valuation of £1,200-1,500 ($1,923-2,404).
The sketch of a man on horseback carrying a spear is signed "Affectueusement (fondly) Dali".
Simpson and Dali struck up their unlikely friendship in 1937, when they worked together alongside fashion designer Elisa Schiaparelli to create a dress for Simpson to wear in an edition of Vogue magazine.
The drawing was given to the Duke and Duchess' butler in the 1950s who is now bringing it to auction.
See our Wallis Simpson signed letter for sale.
The auction will also feature a portion of Henry VII's flag from the Battle of Bosworth.
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