You might like Left Right Coloured Greys I Bridget Riley 1972 Screen Test Michael Morris 1967 Begetting Green Jack Shadbolt 1967–8 Untitled Harold Cohen 1970 Untitled Rory McEwen 1969 Geometry? Joe Tilson 1965 Ziggurat 6 Joe Tilson 1966 Letter I [Memoriam Residence] Ian Tyson 1971 Letter II [Fountain Music] Ian Tyson 1971 Letter III [Noh Raid] Ian Tyson 1971 Letter IIII [Charm Furniture] Ian Tyson 1971 Letter IIIII [Li’s Ghost] Ian Tyson 1971
