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Perhaps if there was kind of a wider ring to improve the attachment<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Bonetools <bonetools-bounces@listserv.niif.hu> on behalf of Alice Choyke <choyke@gmail.com><br>
<b>Sent:</b> Thursday, April 25, 2019 7:13:56 PM<br>
<b>To:</b> Mailing list for archaeologists of the research group for the study of object and waste of bone, antler. ivory and horn.<br>
<b>Subject:</b> Re: [Bonetools] Door hinge?</font>
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<div dir="auto">Dear Etan and Paul,
<div dir="auto"> I like the idea of the top of a bowdrill. However, I donot understand the concentic wear radiating from one side of the hole. How would that work mechanically? What am I missing?</div>
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<div dir="auto">Alice</div>
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<div dir="ltr" class="gmail_attr">On Thu, Apr 25, 2019, 11:09 איתן איילון <<a href="mailto:etana@eretzmuseum.org.il">etana@eretzmuseum.org.il</a>> wrote:<br>
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Why not the upper horizontal handle of a bow-drill?<br>
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Etan Ayalon<br>
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<div id="m_5469904357829694832divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Bonetools <<a href="mailto:bonetools-bounces@listserv.niif.hu" target="_blank" rel="noreferrer">bonetools-bounces@listserv.niif.hu</a>>
on behalf of Paul Stokes <<a href="mailto:escoffier1951@yahoo.co.uk" target="_blank" rel="noreferrer">escoffier1951@yahoo.co.uk</a>><br>
<b>Sent:</b> Thursday, April 25, 2019 5:28:14 PM<br>
<b>To:</b> Mailing list for archaeologists of the research group for the study of object and waste of bone, antler. ivory and horn.<br>
<b>Subject:</b> Re: [Bonetools] Door hinge?</font>
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<div>Hi Josje,</div>
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<div>They could be the handle/bearing block of a bow drill.</div>
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<div>Regards,</div>
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<div>Paul Stokes</div>
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<div>On Thursday, 25 April 2019, 13:44:00 BST, Josje van Leeuwen <<a href="mailto:josje89@gmail.com" target="_blank" rel="noreferrer">josje89@gmail.com</a>> wrote:
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<div>Dear all, <br clear="none">
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<div>This was found in a medieval monastery in Frisia (see attached). It's a bovine metacarpus with a big hole in the centre. Around the hole are concentric friction marks. They cover the proximal side of the bone next to the hole completely. The distal side
next to the hole is only partly covered in friction marks. The backside was flattened by cutting, but has no friction marks. Another hole was made in the distal end.
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<div>A second one was found in the same dig (but different context), also with a hole in the middle but no friction (see pictures).</div>
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<div>Could this be the lower (and perhaps corresponding upper) part of a door hinge? The door could have made the friction marks...<br clear="none">
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<div>Does anyone know any parallels? Or a different interpretation? <br clear="none">
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<div>Many thanks in advance and greetings from the Netherlands,</div>
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<div>Josje van Leeuwen<br clear="none">
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