Etching on a 410 x 270 mm plate engraved in 1976 in Città di Castello and donated by the artist to Adriano Alunni, painter and engraver. The authenticity of the slab is confirmed by the Palazzo Albizzini Burri Collection Foundation of Città di Castello, on 23 August 1995, Prot. N. 42-95.

In 1996, in Milan, ninety-nine copies on Hahnemühle paper of 300gr format 690×490 mm and twenty-five copies on vat paper of 600gr. format 700×505 mm of Papel De Ponte of Mexico D.F., were printed with the press of Giorgio Upiglio.