Cf. a similar mask collected by Daniel Biebuyck in 1952 at the end of the yananio initiations from Mulyabantu, a lutumbo lwa yananio, who had already achieved the lower level of kindi, of the Beiankuku clan, Beia sector, Pangi territory, which was traced back over four generations (Biebuyck, 1973, Pl.60)