Duchamp, Man Ray, Picabia exhibition at Tate Modern

Visitors look at works by Marcel Duchamp, Man Ray and Francis Picabia Photograph: Graham Turner/Guardian

Cadeau, 1921 by Man Ray Photograph: PR

Visitors look at paintings by Francis Picabia Photograph: Graham Turner/Guardian

Cinq Femmes, 1941-43 by Francis Picabia Photograph: PR

Nude Descending Staircase, 1921 by Marcel Duchamp Photograph: PR

Visitors look at photographs by Man Ray with his Venus Restauree, 1936, in the foreground Photograph: Graham Turner/Guardian

Marquise Casati, 1922 by Man Ray Photograph: PR

A visitor looks at Fig Leaf, 1922 by Francis Picabia Photograph: Nils Jorgensen/Rex Features

Chess sets in the exhibition Photograph: Graham Turner/Guardian

L.H.O.O.Q., 1919 by Marcel Duchamp Photograph: PR