Henry Moore’s finished sculptures were often made of bronze, a material that is unsuited to experimentation due to its cost, rigidity and complex fabrication requirements. For this reason, Moore made small tests or representations of his ideas from clay, which Sylvester (1990) refers to as working-models and sketch-models. At the beginning of his career, Moore based these models on his two-dimensional sketches, but over time he relied more heavily on his sketch-models and phased the two-dimensional sketches out of his process altogether
An exhibition selected by David Sylvester and Michael Harrison, and organised by the South Bank Centre. A catalogue, with an introduction by Sylvester, was published to accompany the show. ISBN 1 85332 055 2