A rare carved stone anthropomorphic head sculpture of an ancestor spirit, from a heavy and dense stone. 

Bongo stone sculptures and heads are rare, ceremonial artifacts created by the Bongo people of the Bahr el Ghazal region in South Sudan. 

While the Bongo are primarily renowned for monumental carved mahogany wooden memorial posts (ngya), rare volcanic basalt and stone figurative carvings and head effigies from the region also exist, though few come to market. 

The sculpture measures 9 x 8 inches. 

Provenance: From a private American collection, reportedly collected in the 1980s.