You might like Left Right Benedictus Harold Cohen 1961 Tribune Harold Cohen 1962 Cantus Firmus Bridget Riley 1972–3 Drawing Michael Moon 1976 Matter of Identity III - The Trace Bernard Cohen 1977–9 To a Summer’s Day 2 Bridget Riley 1980 No. 55 Green with Dark Blue Surround Peter Joseph 1981 Empress Albert Irvin OBE RA 1982 Untitled Computer Drawing Harold Cohen 1982 Before the Event Harold Cohen 1963 Flodden Albert Irvin OBE RA 1978 Vigil Completed Harold Cohen 1966