L.H.O.O.Q. and wrote "Moustache par Picabia / barbiche par Marcel Duchamp / avril 1942". As was the case with a number of his readymades, Duchamp made multiple versions of "L.H.O.O.Q." of differing sizes and in different media throughout his career, one of which, an unmodified black and white reproduction of the "Mona Lisa" mounted on card, is called "L.H.O.O.Q. Shaved". The masculinized female introduces the theme of gender reversal, which was popular with Duchamp, who adopted his own female pseudonym, Rrose Sélavy, pronounced "Eros, c'est la vie" ("Eros, that's life"). Primary responses to "L.H.O.O.Q." interpreted its meaning as being an attack
Marcel Duchamp three-dimensional reproduction of his earlier paintings "Bride" (1912), "Chocolate Grinder" (1914) and "Glider containing a water mill in neighboring metals" (1913–1915), which has led to numerous interpretations. The work was formally declared "Unfinished" in 1923. Returning from its first public exhibition in a shipping crate, the glass suffered a large crack. Duchamp repaired it, but left the smaller cracks in the glass intact, accepting the chance element as a part of the piece. Joseph Nechvatal has cast a considerable light on "The Large Glass" by noting the autoerotic implications of both bachelorhood and the repetitive, frenetic machine; he then discerns