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 the emerging art market, through subversive anti-art. He famously dubbed a urinal art and named it "Fountain". Duchamp produced relatively few artworks and remained mostly aloof of the avant-garde circles of his time. He went on to pretend to abandon art and devote the rest of his life to chess, while secretly continuing to make art. In 1958 Duchamp said of creativity, The creative act is not performed by the artist alone; the spectator brings the work in contact with the external world by deciphering and interpreting its inner qualifications and thus adds his contribution to the creative act. Duchamp