Marble bowls for grinding paint pigments and obsidian thumper. Paros, culture Grotta-Pelos, EC I, 3200 to 2800 BC. National Archaeological Museum of Athens N4778.
<a href="//commons.wikimedia.org/wiki/User:Zde" title="User:Zde">Zde</a>
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<span class="int-own-work" lang="en">Own work</span>