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<p>[QUOTE=&quot;Steersman, post: 645517, member: 239&quot;]<font face="Verdana"><font size="5">&nbsp; &nbsp; I don&#039;t think the stone piece is a NA mortar or <i>metate.&nbsp;&nbsp; </i>NA basal grinding stones are typically basin-shaped with considerable polish inside, even from slight use.</font></font></p><p><font face="Verdana"><font size="5"><br /></font></font></p><p><font face="Verdana"><font size="5">&nbsp; &nbsp; Without context, it&#039;s hard to say if it&#039;s NA or pioneer.&nbsp;&nbsp; Considerable effort went into making it.</font></font></p><p><font face="Verdana"><font size="5"><br /></font></font></p><p><font face="Verdana"><font size="5">&nbsp; &nbsp; I think it may have been for another use, such as dyeing, leaching or other material processing.&nbsp;&nbsp; </font></font></p><p><font face="Verdana"><font size="5"><br /></font></font></p><p><font face="Verdana"><font size="5">&nbsp; &nbsp; A look at the bottom should help with the concrete/stone question.&nbsp; (I&#039;m seeing stone, myself, but maybe it&#039;s just the lichens.)</font></font>[/QUOTE]</p><p><br /></p>

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