Rare vintage South African Ovambo dagger from Namibia or Angola

This vintage dagger is from the Ambo People (also known as Ovambo) from Angola and Namibia. The finely forged blade with a central rib is 8 ½ inches long. The handle and the scabbard are hardwood, scabbard is carved from a solid piece of wood partially opened in the front. Total length 13 inches. Very good condition for age. See photos. See my other knives for sale.