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 surrealists' satisfaction, the exhibition scandalized many of the guests. In 1942, for the "First Papers of Surrealism" show in New York, surrealists called on Duchamp to design the exhibition. He wove a three-dimensional web of string throughout the rooms of the space, in some cases making it almost impossible to see the works. Duchamp made a secret arrangement with an associate's son to bring young friends to the opening of the show. When the formally-dressed patrons arrived, they found a dozen children in athletic clothes kicking and passing balls, and skipping rope. When questioned, the children were told to say