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 this was written in 1961 by fellow Dadaist Hans Richter, in the second person, i.e. "You threw the bottle-rack...". Although a marginal note in the letter suggests that Duchamp generally approved of the statement, Richter did not make the distinction clear until many years later. Duchamp's attitude was more favorable, however, as evidenced by another statement made in 1964: The Prix Marcel Duchamp (Marcel Duchamp Prize), established in 2000, is an annual award given to a young artist by the Centre Georges Pompidou. In 2004, as a testimony to the legacy of Duchamp's work to the art world, a panel