1955-56, excavated on behalf of the Joint Expedition to Nippur (Baghdad School of the American Schools of Oriental Research and The Oriental Institute of the University of Chicago); acquired by the Museum in 1958, as a result of its financial contribution to the excavations (1957-58 season).
Pittman, Holly, in collaboration with Joan Aruz. 1987. Ancient Art in Miniature: Near Eastern Seals from the Collection of Martin and Sarah Cherkasky. New York: The Metropolitan Museum of Art, p. 12, fig. 1b.