Color photolithograph on Japon nacré, 1969. 472x395 mm; 18 5/8x15 1/2 inches, full margins. Signed and numbered 41/70 in pencil, lower margin. Printed by Mourlot, Paris. Published by Lucie Weill, Au Pont des Arts, Paris. From the same-titled portfolio. Spies/Leppien A 19.
