35. Project Filtro - for Vergara, New York 1972, By Hélio Oiticica. 1972. Mixed media and sound, 600 by 800 cm. (The artist; exh. Tate Modern, London).
Attributed works:
36. Ring with light, by Robert Morris. 1965-66. Painted wood and fibreglass and fluorescent light, two units, each 61 by 35.6 cm., 246.4 cm overall diam. (Dallas Museum of Art; exh. Sprüth Magers Lee, London).
Attributed works:
37. Instillation view of London garage sale, by Martha Rosler. 2005. Mixed media. (Exh. IA, London).