Aus: Von Farbe zu Form (From Color to Form). 1969.
Lithograph in colours.
Guastalla 211. Signed and inscribed. Artists proof aside from the edition. On wove paper by Arches (with watermark). 39,3 : 52 cm (15,4 : 20,4 in). Sheet: 50 x 64,6 cm (19,6 x 25,4 in).

Plate 9 from the portfolio, printed by Mourlot, Paris, published by Société Internationale d'Art XXe Siècle, Paris, and Léon Amiel, New York 1969. [NB]
Good overall impression. Margin minimally discoloured and slightly rubbed. With remains of a former mounting in places on verso of corners, negligibly showing through to recto recto.