Etching and aquatint on zinc from 1977, signed lower right in pencil by the Artist. Frame size 55 x 75 cm. Paper size 50 x 70 cm. Image size 23.5 x 33cm. Edition 90+ XX + 5 p.a.. Numbered 64/90. References Piero Dorazio, The engraved work (1962-1993), Edizioni Pananti Florence, pl. 186, p. 130. The artwork is accompanied by a receipt / invoice and a guarantee certificate.