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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.
LONDON—Salvador Dali's portrait of a New York 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.

Proceeds will go to the Mona Bismarck American Center in Paris, which promotes Franco-American cultural relations.

Also for sale is Miro's 1936 "The Farmer and His Wife," a vibrant portrait of human figures and barnyard

CAPTION CORRECTION, CORRECTS SPELLING OF ARTIST SURNAME - Two women walks in front of a painting by US artist Jean-Michael Basquiat entitled "Five Fish Species" at Sotheby's auction house during a press preview in London, Thursday, Jan. 31, 2013. The work is estimated to sell for some 4.250-6.250 million pounds (US$ 6.8-10 million, euro 5.27-7.75 million) when it is sells at auction on Feb. 12, in London. ((AP Photo/Alastair Grant))
animals, valued between 5.5 million pounds and 7.5 million pounds ($8.7 million to $11.9 million).

Reporters also were given a preview Thursday of Sotheby's February auctions of Impressionist, modern and contemporary art, including works by Pablo Picasso, Claude Monet, Egon Schiele, Francis Bacon and Jean-Michel Basquiat.

A woman reacts to her photograph being taken next to a work on paper by Egon Schiele entitled "Liebespaar (Selbstdarstellung mit Wally)" "Lovers ( Self Portrait with Wally)" 1914-15, at Sotheby's auction house during a press preview in London, Thursday, Jan. 31, 2013. The work is estimated to sell for some 6.5-8.5 million pounds ( US$ 10.4-13.6 million, euro 8-10.5 million) at auction in London on Feb. 5. ((AP Photo/Alastair Grant))

An employee of Sotheby's auction house at looks at a sale catalogue which includes the Claude Monet painting 'Nympheas avec reflets de hautes herbes' 1914-17, he stands in front of, at Sotheby's during a press preview in London, Thursday, Jan. 31, 2013. The work is estimated to sell for some 12-18 million pounds (US$19-23.7 million, euro 14-17.5 million) on Feb. 5, in London. ((AP Photo/Alastair Grant))