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. 2013 Jun 20;8(6):e66851. doi: 10.1371/journal.pone.0066851

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© 2013 Yossi Zaidner

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Clactonian notch conjoined with small flake that was detached during the knapping. The flake was placed with the ventral surface on an anvil and struck on the dorsal surface with chert pebble hammerstone.