From Ohio History Central
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<img src="images/prehistory/artifacts/sgt-l.jpg" alt="Image of stone tools used for grounding" title="Image of stone tools used for grounding" align="left" height="370" width="251" />
<p>Archaic people ground and polished hard stones such as granite into a variety of durable tools.
This ax is especially large and fine. It is more than nine inches long.</p>