Tu m', 1918
Oil on canvas, with bottle brush, three safety pins, and one bolt, 27 1/2 x 119 5/16 in. (69.8 x 303 cm). Yale University Art Gallery, New Haven. Gift from the Estate of Katherine S. Dreier. © 2008 Artists Rights Society (ARS), New York/ADAGP, Paris/Estate of Marcel Duchamp.