Color lithography, on arches vellum - Image 56 x 76 cm / 22 x 30 in - Sheet 66.5 x 90.5 mm; 26 1/8 x 35 5/8 in Catalog - Cahier Paul Delvaux n ° 3, Galerie Le Bateau-Lavoir, Paris, 1972, n ° 42