You might like Left Right Untitled [Fragment 1/7] Bridget Riley 1965 Untitled [Fragment 2/10] Bridget Riley 1965 Untitled [Fragment 5/8] Bridget Riley 1965 Colour Structure 1 (trial proof) David Leverett 1971 Colour Structure 2 (trial proof) David Leverett 1971 Structure Brian Rice 1965 Structure 14c Stephen Gilbert 1961 Light Structure John Hubbard 1966 Op Structure Michael Dillon 1967 Perspex Group Mary Martin 1963 Curvilinear Structure (Abakum) Jeffrey Steele 1972 Infinite Structure Saloua Raouda Choucair 1963–5