[Bonetools] Door hinge?

[Alice Choyke]

Dear Etan and Paul,
      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?

Alice

On Thu, Apr 25, 2019, 11:09 איתן איילון <etana at eretzmuseum.org.il> wrote:

> Why not the upper horizontal handle of a bow-drill?
> Etan Ayalon
>
> השג את Outlook עבור Android <https://aka.ms/ghei36>
>
> ------------------------------
> *From:* Bonetools <bonetools-bounces at listserv.niif.hu> on behalf of Paul
> Stokes <escoffier1951 at yahoo.co.uk>
> *Sent:* Thursday, April 25, 2019 5:28:14 PM
> *To:* Mailing list for archaeologists of the research group for the study
> of object and waste of bone, antler. ivory and horn.
> *Subject:* Re: [Bonetools] Door hinge?
>
> Hi Josje,
>
> They could be the handle/bearing block of a bow drill.
>
> Regards,
>
> Paul Stokes
>
> On Thursday, 25 April 2019, 13:44:00 BST, Josje van Leeuwen <
> josje89 at gmail.com> wrote:
>
>
> Dear all,
>
> 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.
> A second one was found in the same dig (but different context), also with
> a hole in the middle but no friction (see pictures).
>
> Could this be the lower (and perhaps corresponding upper) part of a door
> hinge? The door could have made the friction marks...
> Does anyone know any parallels? Or a different interpretation?
>
> Many thanks in advance and greetings from the Netherlands,
>
> Josje van Leeuwen
> _______________________________________________
> Bonetools mailing list
> Bonetools at listserv.niif.hu
> https://listserv.niif.hu/mailman/listinfo/bonetools
> _______________________________________________
> Bonetools mailing list
> Bonetools at listserv.niif.hu
> https://listserv.niif.hu/mailman/listinfo/bonetools
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://listserv.niif.hu/pipermail/bonetools/attachments/20190425/71df0145/attachment-0001.html>