Unknown spear for comment and identification

[Araña_del_Sol]

Greetings,

This spear appears to be African but I have not been able to identify the regional/ethnic attribution. It is 163cm (~64.25 inches) in overall length and has a distinctive point/blade with elevated fin-like midribs for at least the first 1/3 length of the blade. This feature gives the blade an X-shaped cross-section where it occurs, hopefully it comes across clearly in the photographs. Aside from this, the butt end is covered in an iron sleeve terminating in a thick iron coil. Any help identifying a more specific attribution would be appreciated.

-ADS