Coloured Greys [2] (Schubert 17)

Bridget Riley (B. 1931) Coloured Greys [2] (Schubert 17) screenprint in colours, 1972, on wove paper, signed, titled and dated in pencil, inscribed 'Artist's proof', aside from the published edition of 125, published by the artist, with full margins, slight surface dirt in the upper margin, pale light-staining in the margins, otherwise apparently in very good condition, unexamined out of the frame L. 570 x 570 mm., S. 720 x 720 mm.