Philippe Decelle, L'Utopie du tout Plastique 1960-1973, Brussels, 1994, p. 100 Jean-Louis Gaillemin et. al, eds., Design contre Design, exh. cat. Galeries Nationales du Grand Palais, Paris, 2007, p. 260
designed 1971 Polyurethane foam, chrome-plated steel. 98 x 58 x 74 cm (38 5/8 x 22 7/8 x 29 1/8 in.) Underside of seat incised Ruth Francken and underside of base impressed 3 twice.