sentences:  This work is a tableau, visible only through a pair of peepholes (one for each eye) in a wooden door, of a nude woman lying on her back with her face hidden, legs spread, holding a gas lamp in the air in one hand against a landscape backdrop.Duchamp worked secretly on the piece from 1946 to 1966 in his Greenwich Village studio.It is composed of an old wooden door, nails, bricks, brass, aluminium sheet, steel binder clips, velvet, leaves, twigs, a female form made of parchment, hair, glass, plastic clothespins, oil paint, linoleum, an assortment of lights, a landscape composed of hand-painted and photographed elements and an electric motor housed in a cookie tin which rotates a perforated disc.