Mark Rothko, No.1, 1949, oil on canvas © Kate Rothko Prizel and Christopher Rothko/DACS 2016

Mark Rothko, Untitled 2, 1949, oil on canvas, 238.8 × 135.6 cm, Menil Collection © Kate Rothko Prizel and Christopher Rothko/DACS 2016

Mark Rothko, No.3/No.13 (Magenta, Black, Green On Orange), 1949,  oil on canvas, 216.5 x 164.8 cm, Museum of Modern Art (MoMA), New York City, NY, US © Kate Rothko Prizel and Christopher Rothko/DACS 2016

Mark Rothko, No.5, 1949, oil on canvas, 215.9 x 160 cm, The Chrysler Museum of Art, Norfolk, VA © Kate Rothko Prizel and Christopher Rothko/DACS 2016

Mark Rothko, No 7 - No.11, 1949, oil on canvas 173 x 111 cm © Kate Rothko Prizel and Christopher Rothko/DACS 2016

Mark Rothko, No.8, 1949, oil and mixed media on canvas, 228.3 x 167.3 cm, National Gallery of Art, Washington, DC © Kate Rothko Prizel and Christopher Rothko/DACS 2016

Mark Rothko, No.19, 1949, oil on canvas, 172.8 x 101.8 cm, Art Institute of Chicago, IL © Kate Rothko Prizel and Christopher Rothko/DACS 2016

Mark Rothko, No.21, 1949, oil on canvas, 101.6 x 76.5 cm. Private Collection © Kate Rothko Prizel and Christopher Rothko/DACS 2016

Mark Rothko, No.24, 1949, oil on canvas, 224 x 146.1 cm, Hirshhorn Art Collection, Washington, DC © Kate Rothko Prizel and Christopher Rothko/DACS 2016

Mark Rothko, Untitled (Violet, Black, Orange, Yellow on White and Red), 1949, oil on canvas, 207 x 167.6 cm, Guggenheim, New York City © Kate Rothko Prizel and Christopher Rothko/DACS 2016

Mark Rothko, Untitled, oil and acrylic with powdered pigments on canvas, 142.2 x 83.8 cm, Metropolitan Museum of Art, New York City © Kate Rothko Prizel and Christopher Rothko/DACS 2016

Mark Rothko, Untitled, oil on canvas, 162.6 x 109.2 cm, Akron Art Museum, Ohio © Kate Rothko Prizel and Christopher Rothko/DACS 2016

Mark Rothko, Untitled, oil on canvas, 204.2 x 168.3 cm,  National Gallery of Art, Washington, DC © Kate Rothko Prizel and Christopher Rothko/DACS 2016

Mark Rothko, Untitled, 1949, watercolour on paper, 104.1 x 69.2 cm, National Gallery of Art, Washington, DC © Kate Rothko Prizel and Christopher Rothko/DACS 2016

Mark Rothko, Yellow and Orange, 1949, oil on canvas, 140.6 x 111.8 cm, Museum of Contemporary Art, Los Angeles, CA © Kate Rothko Prizel and Christopher Rothko/DACS 2016

Mark Rothko, Untitled, 1949 © Kate Rothko Prizel and Christopher Rothko/DACS 2016