51. 51AR ZAO WOU-KI (1920-2013) The evidence of night, 1991 Boxed set comprising four aquatints in black on China paper applied to Alcantara pur chiffon Signed by the author and artist on the title page and numbered 19/70 Text by André Peyre Published by Jacques T. Quentin, Geneva Engravings printed by Lacourière et Frélaut, Paris Size of box: 35 x 27 x 4 cm Boxed set comprising four aquatints in black on China paper applied to Alcantara pur chiffon, signed by the author and artist on the justification page and numbered 19/70