Study for "Improvisation 28" (second version) (Entwurf zu "Improvisation 28" (zweite Fassung)), 1912. Watercolor, india ink, and graphite on paper, 15 3/8 x 22 1/8 inches (39 x 56.1 cm). The Hilla von Rebay Foundation, on extended loan to the Solomon R. Guggenheim Museum, New York 1970.127. © 2012 Artists Rights Society (ARS), New York / ADAGP, Paris
