(link) "The Nimrud lens / the Layard lens". Collection database. The BritishMuseum. Retrieved Oct 21, 2012. Villiers, Geoffrey de; Pike, E. Roy (2016-10-16)
Eastern art in the Department of Western Asiatic Antiquities, the BritishMuseum. BritishMuseum. p. 41. ISBN 9780714110691 Collon, Dominique (1995). Ancient