Untitled (Colour study 1) Untitled (Colour study 1) Michael Craig-Martin Untitled (Colour study 1) 1990 Ink on paper Paper size: 16 1/2 x 22 3/8 inches (41.9 x 56.8 cm) Signed lower right and dated lower left in graphite (Inventory #32713) Go Back Share Untitled (Colour study 1) Facebook Twitter Pinterest Tumblr Email