You might like Left Right the last alphabet Hansjörg Mayer 1969, 2013 Antennae with Red and Blue Dots Alexander Calder c.1953 Model for a ‘Monument to the Unknown Political Prisoner’ Naum Gabo 1952 Six Geometric Figures ( Two) (Wall Drawings) Sol LeWitt 1980–1 Time-Base Roller John Latham 1972 Untitled (Bataille) Julião Sarmento 1976 Northern Ireland 1968 - May Day 1975 Conrad Atkinson 1975–6 The Mechanical Ballet Feliza Bursztyn 1979 Relatum Lee Ufan 1968, 1994 Room no. 2 Irina Nakhova 1984 Defying Gravity Takis 1965 Current Disturbance Mona Hatoum 1996