Published by Galerie der Spiegel, Cologne 1965
Edition Mat-Mot
Six-colour offset on accordion-folded white card,
292 x 23 cm. included in black box, 28 x 28 x 0.5 cm.
Signed and numbered 62/111
Exh.: 2012, Chiasso.
Bibl.: E. Williams, "Schemes & Variations", Stuttgart 1981, pp. 15-30.