Readymades of Marcel Duchamp to turn up any identical matches to photographs of the originals. However, there are accounts of Walter Arensberg and Joseph Stella being with Duchamp when he purchased the original "Fountain" at J. L. Mott Iron Works. Such investigations are hampered by the fact that few of the original "readymades" survive, having been lost or destroyed. Those that still exist are predominantly reproductions authorized or designed by Duchamp in the final two decades of his life. Shearer also asserts that the artwork "L.H.O.O.Q." which is recorded to be a poster-copy of the "Mona Lisa" with a moustache drawn on it, is
Marcel Duchamp million (€8.9 million). Duchamp works Essays by Duchamp General resources Audio and video Marcel Duchamp Henri-Robert-Marcel Duchamp (; ; 28 July 1887 – 2 October 1968) was a French-American painter, sculptor, chess player, and writer whose work is associated with Cubism, Dada, and conceptual art, although he was careful about his use of the term Dada and was not directly associated with Dada groups. Duchamp is commonly regarded, along with Pablo Picasso and Henri Matisse, as one of the three artists who helped to define the revolutionary developments in the plastic arts in the opening decades of the 20th century,