Alberto Giacometti's Trois Hommes Qui Marchent I will carry an estimate of £6.2m-8m ($10.1m-13m) to Christie's Impressionist Modern/Evening Sale in London on February 4.

The sculpture, which depicts three men walking, was cast in 1951 and represents the artist's attempt to capture the spirit of existentialism through the fragility of form.

Troi Hommes Qui Marchent I was cast in 1951 and is part of a series featuring figures in motion

Last year saw a strong series of auction results for Giacometti (1901-1966) - with a sculpture, Grand Tete de Diego, achieving $50m, and a work titled Diego en Chemise becoming his most valuable painting at auction, selling for $32.6m.  

You can read Wikicollecting's Top 10 most valuable works by Alberto Giacometti here.

Les Cylindres Colores (1918), a painting by Fernand Leger (1881-1955), is valued at £5m-7m ($8.1m-11.4m).

The painting dates to the end of the first world war, and represents a distinct change in tone from the artist's pre-war works - which were highly abstract.

In his post-war paintings, Leger focused on industrial forms that echoed the mechanised nature of the conflict that he had experienced on the Western Front - with Les Cylindres Colores appearing to represent a humanoid form.

The auction record for a work by Leger was set at $39.2m for Study for the Woman in Blue in 2008.

Last year, Leger's Trois Femmes a la Table Rouge, a painting previously owned by Madonna, made $7.2m in New York.

The auction will be led by Picasso's Femme au Costume, valued at £20m ($32.8m), and will also feature work by Joan Miro and Juan Gris.

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