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 When he returned to Paris after World War I, Duchamp did not participate in the Dada group. "Readymades" were found objects which Duchamp chose and presented as art. In 1913, Duchamp installed a "Bicycle Wheel" in his studio. However, the idea of "Readymades" did not fully develop until 1915. The idea was to question the very notion of Art, and the adoration of art, which Duchamp found "unnecessary". "Bottle Rack" (1914), a bottle drying rack signed by Duchamp, is considered to be the first "pure" readymade. "Prelude to a Broken Arm" (1915), a snow shovel, also called "In Advance of