1964, excavated by Robert H. Dyson Jr. on behalf of the Hasanlu Project sponsored by the University Museum of the University of Pennsylvania, the Archaeological Service of Iran, and The Metropolitan Museum of Art; acquired by the Museum in 1965, as a result of its financial contribution to the excavations.
Muscarella, Oscar W. 1966. "Hasanlu 1964." The Metropolitan Museum of Art Bulletin 25, p. 128, fig. 11.
Winter, Irene J. 1977. "Perspective on the 'Local Style' of Hasanlu IVB: A Study in Receptivity," in Mountains and Lowlands: Essays in the Archaeology of Greater Mesopotamia. Ed. L. Levine and T.C. Young, Jr. Bibliotecha Mesopotamica vol. 7. Malibu, 1977, pl. XXII:10.
Muscarella, Oscar W. 1980. The Catalogue of Ivories from Hasanlu, Iran. Hasanlu Special Studies II. University Museum Monograph 40. Philadelphia: The University Museum, University of Pennsylvania, no. 1, pp. 9-10.
Muscarella, Oscar W. 1989. "Warfare at Hasanlu in the 9th Century B.C." Expedition 31, p. 33.
Marcus, Michelle I. 1996. Emblems of Identity and Prestige: The Seals and Sealings from Hasanlu, Iran. Hasanlu Special Studies III. University Museum Monograph 84. Philadelphia: The University Museum, University of Pennsylvania, pl. 34b.