Visitors look at a work by Joan Miro entitled "Le Fermier et son epouse" 1936, at Sotheby's auction house during a press preview in London, Thursday, Jan. 31, 2013. The work is estimated to sell for some 5.5-7.5 million pounds ( US$ 8.7-11.867 million, euro 6.421-8.752 million) when sold at auction on Feb. 5 in London. (AP Photo/Alastair Grant)

London - Salvador Dali's portrait of a New York society style icon and Joan Miro's homage to his Catalan roots are going on sale at a London auction of surrealist masterpieces.

Dali's 1943 “Portrait of Mrs. Harrison Williams” will go under the hammer Tuesday, with an estimated price of between 1.5 million and 2 million pounds ($2.4 million and $3.2 million).

Dali painted the ultra-rich and super-stylish socialite - who later became Countess Mona Bismarck - barefoot and dressed in black rags.

Also for sale is Miro's “The Farmer and His Wife,” a vibrant portrait of human figures and barnyard animals, valued at between 5.5 million pounds and 7.5 million pounds.

Also Tuesday, Sotheby's holds an Impressionist and modern art auction, including works by Pablo Picasso, Francis Bacon and Jean-Michel Basquiat. - Sapa-AP