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 impact on twentieth-century and twenty first-century art, and he had a seminal influence on the development of conceptual art. By World War I, he had rejected the work of many of his fellow artists (such as Henri Matisse) as "retinal" art, intended only to please the eye. Instead, Duchamp wanted to use art to serve the mind. Marcel Duchamp was born at Blainville-Crevon in Normandy, France, and grew up in a family that enjoyed cultural activities. The art of painter and engraver , his maternal grandfather, filled the house, and the family liked to play chess, read books, paint, and