Mark Rothko, No. 9, 1948. Oil and mixed media on canvas overall: 53-1/16 x 46 5/8 in. Gift of The Mark Rothko Foundation, Inc. ©1997 Christopher Rothko and Kate Rothko Prizel ©1998 Kate Rothko Prizel & Christopher Rothko/Artists Rights Society (ARS), New York. Image courtesy National Gallery of Art, Washington, D.C.