You might like Left Right Letter I [Memoriam Residence] Ian Tyson 1971 Coloured Greys I Bridget Riley 1972 Paradox I Derek Hirst 1975 Paradox II Derek Hirst 1975 Paradox III Derek Hirst 1975 Paradox IV Derek Hirst 1975 Begetting Green Jack Shadbolt 1967–8 Parity Study in Blue and Red Anthony Hill 1971 Series 40cm Continued G Gordon House 1969 Untitled Rory McEwen 1969 [no title] Gordon House 1979 Kyoto No. 2 Derek Hirst 1972–3