An elongated, wide bowl with an almost flat base, steep inner walls on the long sides and raised narrow sides sloping flatly outwards, on which the outline of the bowl and opening is rounded (type A). Transverse walls slightly arched over the inside of the shell. On each narrow side [are] nine deep string guide slots. The string cord [is] only preserved in fragments. A thin wooden bridge following the rounding of the wall and inserted into a groove, the ends of which are stuck into recesses in the wall. The second narrow side bar is missing. A small perforation at the side (probably for attaching a string). In addition, a pair of perforations burnt into a longitudinal wall. Six large, round, likewise burnt-in base perforations, arranged symmetrically around a central perforation slit. The narrow sides of the bowl are burnt black. from Ulrich Wegner: Afrikanische Saiteninstrumente, Staatliche Museen Berlin - SPK, 1984 (Appendix Object Catalogue)