Catalog summary
Bridget Riley (British, born 1931) Untitled (Wave) (S. 20), 1975 Silkscreen printed in colors on wove paper, signed in pencil, dated, and numbered 12/400, published by Galerie Beyeler, Basel, printed by Graham Henderson, London, with full margins, colors attenuated, in good condition aside from one foxmark beneath image, 1/2in abrasion and a few smaller nicks in lower margin, pressure marks at upper corners from hinges on verso, one foxmark on verso, framed. 4 1/2 x 16 7/8in sheet 7 7/8 x 18 7/8in