Lithograph, 1973. 225x300 mm; 8 3/4x11 3/4 inches (sheet), full margins. Printer's proof, aside from the edition of 300. Signed and inscribed "AC 21-30" in white pencil, lower right. Printed by Styria Studio, New York. Published by Experiments in Art and Technology, Stockholm. From New York Collection for Stockholm. A very good impression.