Literature
C.P. Snow, Michael Ayrton Drawings and Sculpture, London, 1966, pls.45, 46 (another cast illustrated).
P. Cannon-Brookes, The Compulsive Image: Sculpture and Paintings by Michael Ayrton, Birmingham City Museum and Art Gallery Exhibition Catalogue, 1977, p.5.
J. Hopkins, Michael Ayrton: A Biography, London, 1994, pp.198-99, 212.