This item is likely a Native American nutting stone or cupstone artifact, characterized by intentionally carved circular depressions used for cracking nuts or grinding seeds. [1, 2]Similar items are frequently constructed from sandstone, and the depressions may show significant wear from long-term use. [1, 2]While these are often prehistoric artifacts, similar pits can sometimes be formed naturally by rocks rolling in riverbeds or through geological processes measures 7.5 in x 3.5 in x 3 in

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