131. 131AR CONSTANTIN XENAKIS (1931-2020) Blue and black reading signed and dated "Constantin Xenakis 85" (on the rolls), and on the base acrylic on paper rolls in plexiglass box 47 x 53 x 53 cm. 918.50 x 20.87 x 20.87 in.) Made in 1985 Acrylic on paper rolls mounted on plexiglass box Literature Constantin Xenakis, Structures and Codes, Artistic Investments editions, Athens 2006 (illustrated). P. Kounenaki, Constantinos Xenakis, the Maker of a Visual Alphabet, Ta Nea editions - Contemporary Greek Artists series, Athens 2008, pp. 106-107 (illustrated).