Court of Benin; taken from the Royal Palace in 1897 during the British military occupation of Benin by Norman Burrows; [W. D. Webster, until 1898]; Augustus Lane-Fox Pitt-Rivers, Farnham, Dorset, U.K., from 1898; [Alvin Abrams, Conneticut and New York]; Mr. and Mrs. Klaus G. Perls, New York, until 1991
Ezra, Kate. Royal Art of Benin: The Perls Collection in the Metropolitan Museum of Art. New York: The Metropolitan Museum of Art, 1992, pp. 102–103, no. 32.
Pitt-Rivers, Lieutenant General Lane-Fox. 1900. Antique Works of Art from Benin. London: pl. 25.
Vogel, Susan Mullin. "Rapacious Birds and Severed Heads: Early Bronze Rings from Nigeria" The Art Institute of Chicago Centennial Lectures / Museum Studies 10, 1983, p331-357.
"ROYAL ART OF BENIN. The Perls Collection in The Metropolitan Museum of Art." Kate Ezra. The Metropolitan Museum of Art and Harry N. Abrams Inc., New York 1992, no. 32