LING ROTH, H.: Great Benin, Halifax, 1903; Pitt Rivers, Lt.Gen. A.H.L.F.: Antique Works of Art from Benin, London, 1900; African Bronzes from Ifé and Benin, exhibition catalogue from H.F. Sachs Gallery, New York, 1941; Bronzes and Ivories from the Old Kingdom of Benin, exhibition catalogue from M Knoedler and Company, New York, 1935; Buxton, M.H.: Benin, Houston, 1968; Forman, W. and B. and Dark, P.: benin art, London, 1960; von Luschan, F.: Die Altertümer von Benin, 1968 reprint of the 1919 work, New York; and six others of similar interest (13)