This is a nice example of this style of tool / weapon. It was flaked with a bit at both ends. These bits are both flat and pointed. Notches were chipped into the top and bottom to aid in the hafting. It appears to be made of Coshocton Chert.
This piece was purchased at a museum auction in central Indiana in the 1960’s. This is very symmetrical and a great example of this style pestle. It still shows a lot of the pecking from its manufacture but also has much smoothing from use.