Part of a period of pictorial experimentation characterised by thick forms in dialogue with colourful, non-uniform backgrounds, Peinture 81 x 60 cm, 28 novembre 1955 presents large black rectangles applied by brush or knife, juxtaposed on a surface covered with black, yellow and dark red. Standing out against a matt background, the glossy forms create a particular rhythm and attract the eye to a few bright gaps contrasting with the density of the whole.