Agnes Martin "Flower in the Wind", 1963, Oil and pencil on canvas, 190.5 x 190.5 cm; "Untitled #11", 1999, Acrylic and graphite on canvas, 152.4 cm 152.4 cm; "Untitled #12", 1999, 152.4 x 152.4 cm Foto: Mark Niedermann
Agnes Martin "Untitled #6", 1983, Acrylic and graphite on cavas, "Untitled #11", Gesso, acrylic, and graphite on canvas, 183 x 183 cm; Flower in the Wind", 1963, Oil and pencil on canvas, 190.5 x 190.5 cm; "Untitled #11", 1999, Acrylic and graphite on canvas, 152.4 x 152.4 cm; "Untitled #12", 1999, 152.4 x 152.4 cm Foto: Mark Niedermann