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 Salon d'Automne in Paris, where they were both exhibiting. Duchamp showed a larger version of his "Young Man and Girl in Spring" 1911, a work that had an Edenic theme and a thinly veiled sexuality also found in Picabia's contemporaneous "Adam and Eve" 1911. According to Duchamp, "our friendship began right there". A group met almost nightly at the Arensberg home, or caroused in Greenwich Village. Together with Man Ray, Duchamp contributed his ideas and humor to the New York activities, many of which ran concurrent with the development of his Readymades and "The Large Glass". The most prominent