Thanks for all of your guesses on Stick of the Week! Many of you were in the right area…this stick IS used for hunting. But it is not an atlatl (throwing spear). It is a springhare hook.
Springhares are small burrowing African rodents. The hook would be extended into the springhare’s burrow and used to kill the animal. Extra lengths could be added if necessary to accommodate the depth of the burrow. The number of lengths needed to reach the springhare would then be counted, and used to calculate where the hunters needed to dig to reach their prize.
However, this object was originally in one piece, and our records say that it was cut into three pieces for ease of transport! It was acquired by the Horniman in 1978.