Plaster and resin sculpture; upper section: polyurethane resin; lower section: jesmonite (plasticized plaster) with acrylic sealant. Rachel Whiteread's "Untitled (Plinth)" is a small-scale model, or maquette, for her sculpture "Inverted Plinth". This was displayed in London's Trafalgar Square in 2000 as part of a series of temporary installations on the Square's "empty plinth". The sculpture consists of a resin cast of the Trafalgar Square plinth placed upside down on the plinth itself. Such exploration of space is typical of Whiteread's work, transforming an unremarkable form into an object of beauty and contemplation. Whiteread is known for her sculptures of "negative space". She was the first woman to win the prestigious Turner Prize in 1993 and she went on to represent Britain at the Venice Biennale in 1997.