"Portrait of Marcel Duchamp" is an amalgamation of broken wine glasses, assorted feathers, tree twigs, and other unidentifiable objects. The portrait in form resembles that of a bird with a long, curious neck. Commanding attention, it casts an equally stimulating shadow.
Tomkins, Calvin: Duchamp: A Biography, Henry Holt and Company, Inc., 1996. ISBN 0-8050-5789-7