Carlos Cruz-Diez (1923) Physichromie DDC1 1981 Mixed processing on panel cm. 40x40 Sign on the back Archive by Atelier Cruz-Diez Foundation. Artwork in 3 samples Letter of participation from the atelier Cruz-Diez for partecipate at the exhibition "Miscellanea. Arte Concreta, Figurazione, Informalismo, Madì",Exhibition Halls Former Prison Bourbon, Avellino, 1994