A possible inverted sheperd's crook on a stone at the Almendres Cromlech. The sheperd's crook is a common motif in local megaliths.
<a href="//commons.wikimedia.org/wiki/User:Xyzt1234" title="User:Xyzt1234">Xyzt1234</a>
2006-05-26
<span class="int-own-work" lang="en">Own work</span>