14-color silkscreen on white Murillo cardboard from Cartiere Miliani Fabriano. - The Work is part of the portfolio "Counterpoints - 7 visual notations by Accardi, Boetti, Buren, Kounellis, LeWitt, Paolini and Pistoletto" published by A.E.I.O.U Edizioni d'arte (Rome) - Subject is a study of the sculpture "Alter-Ego, 1984 - Complete with certificate of authenticity and origin (publisher's signature and dry stamp with photographic reference and numbering).