Etching and aquatint Van der Koelen 84004. Signed and numbered 26/50. With title on verso. On Chine, rolled onto wove paper by BFK Rives (with watermark). 21 x 17,2 cm (8,2 x 6,7 in)Sheet: 53,3 x 75,5 cm (20,9 x 29,7 in). Printed by Taller Hatz, San Sebastian. Published by Galerie Maeght-Lelong, Zurich. [JS].