This is a most unusual Lozi double decker bowl , called an 'ìMukekaî'.
The Lozi live in and around the flood plain of the Zambezi River in the Western Province of Zambia. Among the best known utilitarian objects, are the lidded bowls which were made to serve and keep the meat and vegetables warm.
Height: 11 1/2" x Diameter: 9 1/4".