Primavera Gallery, Cambridge
Collingwood | Coper, exh. cat., Victoria and Albert Museum, 1969, passim for similar examples
Ann Sutton, 'Peter Collingwood - Hans Coper Exhibition at the Victoria and Albert Museum, London', Quarterly Journal The Guilds of Weavers, Spinners and Dyers, no. 70, Summer 1969, n.p. for similar examples
Martina Margetts and Linda Theophilus, eds., Peter Collingwood: Master Weaver, exh. cat. 1998, passim for similar examples