Light Grey , July 1968 acrylic on canvas, 226 × 172.7 cm (89 × 68 in.) Private Collection © Estate of Jack Bush / SODRAC (2014) Photo: Michael Cullen, TPG Digital Art Services Pinched Orange , December 1964 oil on canvas, 220.9 × 177.8 cm (87 × 70 in.). Collection of Audrey and David Mirvish, Toronto. © Estate of Jack Bush / SODRAC (2014) Photo: Craig Boyko Tall Spread , June 1966 acrylic on canvas, 271.7 × 152.4 cm (107 × 60 in.) National Gallery of Canada, Ottawa © Estate of Jack Bush / SODRAC (2014) Photo © NGC Grey V March 1967 acrylic on canvas, 193 × 274.9 cm (76 × 108.25 in.) Tedeschi Collection, Montreal © Estate of Jack Bush / SODRAC (2014) Photo: Michael Cullen, TPG Digital Art Services Red Grey Totem September 1973 acrylic on canvas, 125.7 × 167.6 cm (49.5 × 66 in.) Collection of Andrée & Léopold Amyot © Estate of Jack Bush / SODRAC (2014) Ph...