Vol de nuit (Oiseau XII). 1957. Lithograph in colors. Vallier 111. Signed and numbered. Monogrammed in stone. From an edition of 75 copies. On wove paper by Arches (with watermark). 38,5 x 68,5 cm (15,1 x 26,9 in). Sheet: 53,5 x 75,5 cm (21 x 29,7 in). Printed by Mourlot, Paris. Published by Maeght, Paris. A copy of this color lithograph is in possession of the Bibliothèque Nationale, Paris.[EH].