Nineteen Greys D (S. 8d)

Bridget Riley (b. 1931) Nineteen Greys D (S. 8d) screenprint in colours, 1968, on card, signed, titled, dated and inscribed 'Artist's Proof', aside from the edition of 75, printed to the edges of the full sheet, remains of glue at the upper, lower and left sheet edges, two tiny ink losses at the lower sheet edge at right, otherwise generally in good condition S. 762 x 762 mm.