Mario Merz Untitled signed and dated 76 on the reverse snail shell, clay, pencil, coloured pencil and felt-tip pen on cardboard 72 by 101.1cm.; 28 1/4 by 39 3/4 in. Provenance Galerie Palette, Wiesner + Kohlbrenner, ZĂĽrich Galleria Forma, Genoa Galerie Annemarie Verna, ZĂĽrich