Francis Bacon (British, 1909-1992) Triptych 1974-1977 Etching and aquatint in colours, 1981,  an artist's proof aside from the edition of 99, on Guarro paper, signed in pencil lower right and numbered 11/15 lower left, printed by Poligrafa, Barcelona, each plate 388 x 295mm (15 1/4 x 11 2/3in), sheet 625 x 895mm (24 1/2 x 35 1/4in)
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