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 Dalí's "Rainy Taxi", a work consisting of a taxicab rigged to produce a drizzle of water down the inside of its windows, with a shark-headed creature in the driver's seat, and a blond mannequin covered with live snails in the back. In this way Duchamp confronted guests entering the exhibition, who were in full evening dress. "Surrealist Street" filled one side of the lobby with mannequins dressed by various surrealists. The main hall was a simulation of a dark subterranean cave with 1,200 empty coal bags suspended from the ceiling. The floor was covered by Paalen with dead leaves and