Spuhler, Friedrich. Islamic carpets and textiles in the Keir collection / Friedrich Spuhler, with an introduction by George Wingfield Digby. - London : Faber and Faber, 1978. - 251 p. : ill. ; 28 cm. ISBN: 0571097839 Subjects--Personal Names: De Unger, Edmund--Art collections. Subjects--Topical Terms: Rugs, Islamic.Textile fabrics, Islamic.