I was looking at the Penn museum who write at https://www.penn.museum/collections/object/333303
Quote" See von Luschan, Altertumer von Benin, p. 440, figs. 697a and c, and drawings at end of text volume, E 696 a and c. The sword is of brass, the blade completely covered with ornament, the spaces between the designs being thickly pitted. The hilt is of wood partly covered with thin plates of brass or bronze and with copper (?) wire.''Unquote.
See weapon examples below with Penn Museum weapon in black and white;