Felt-tip pen drawing Signed in the lower half of the image. With the stamp "Peinture exécutée en collaboration avec 'Meta-Matic No 8' de Tinguely" on verso, there with date and isncription. On light cardboard (with perforated edge). 30,1 x 21 cm (11,8 x 8,2 in), size of sheet The stamped verification proves that this work was partly made by a machine that Tinguely had constructed. [NB].