Untitled (not in Koelen)

Eduardo Chillida (1924-2002) Untitled (not in Koelen) aquatint, 1972, on Arches paper, signed in pencil and inscribed 'P.A.', an artist's proof impression, from an unknwon edition size, possibly unique, published by Gustavo Gili, Barcelona, the full sheet, with deckled edges on two sides, some time staining, otherwise in good condition P. 440 x 550 mm., S. 900 x 637 mm.