ALBERTO BURRI (Città di Castello 1915 - Nizza 1995) Untitled 1964 paper, acrylic, vinavil, combustion on cardboard 33x20.5 cm, with support 47x34 cm signed lower right   The artwork has a certificate of authenticity released by the Fondazione Alberto Burri. The artwork is registered at the Fondazione Alberto Burri with n. 6489. Provenance Galleria Toninelli, Rome Private collection       Fondazione Palazzo Albizzini-Collezione Burri, Città di Castello ©