[Bonetools] Mystery bone object

[François Poplin]

Fine ! The quantity of wear is about the same on the right and on the 
left, taken account of bone density, hardness and so forth in the 
proximal metaphysis and  in the distal one. It reinforces the 
impression/idea that the two wears occured at the same time, from two 
linked turning pieces. Maybe the one on the left was of lesser diameter 
- which would make "dig"/excavate bone quicker.

That the wear went to such a slim strip of bone (on the left) suggests 
that the metapodial what supported underneath. It could have been tight 
to/on/around a post/pole with a kind of belt betweeen the two 
rolls/axes, and another similar piece (the other metacarpal...) could 
have been tight in superimposed position, facing the first/underlying 
one...  ...  ...

Could be the other exemplars from elsewere be photographied and brought 
into the discussion ? If they are some found at the same place, it would 
be good for developing a further comment. If the moving/revolving is 
continuous (more than 180 °), the grooves should be the same on the 
(evetual) two facing bearings.

Would argue contexts for some special technological environnement ? On 
top hills or along rivers ?

With my best regards.





Leigh Allen a écrit :
> Dear Marloes, 
> Attached is a better picture of the object in plan and from the side 
>
> Kind regards 
>
> Leigh  
> ----- Original Message -----
> From: "Marloes Rijkelijkhuizen" <marloesrijkelijkhuizen at hotmail.com>
> To: bonetools at listserv.niif.hu
> Sent: Sunday, 21 March, 2010 08:11:17 GMT +00:00 GMT Britain, Ireland, Portugal
> Subject: Re: [Bonetools] Mystery bone object
>
>
> I didn't receive any photos.. 
>
> Marloes 
>
>
> Date: Fri, 19 Mar 2010 16:32:02 +0100 
> From: poplin at mnhn.fr 
> To: bonetools at listserv.niif.hu 
> Subject: Re: [Bonetools] Mystery bone object 
>
> Dear Alice, 
>
> I/we cannot open here... 
>
> Alice Choyke a écrit : 
>
> Since Leigh is not on the list you should reply both to her directly and to the list so we can all see what you have to say about Leigh's mystery tools. 
>
> Alice 
>
>
> On Thu, Mar 18, 2010 at 3:00 PM, Leigh Allen < leigh.allen at oxfordarch.co.uk > wrote: 
>
>
> Dear All, 
>
> I am new to this site, so let me briefly introduce myself. I am the Finds manager at Oxford Archaeology and have been for the last 20 years !! I also write reports on Medieval/Post Medieval metalwork and worked bone objects. I have an object from a site that we excavated in Winchester that I would like to ask you about (see attached photos). It is from a rubble later dated anywhare from 5th-13th century ! 
>
> The cattle metacarpal has a large scoop taken out of the proximal end, the surface is perfectly smooth and very heavily polished but the rest of the bone is not. At the distal end, which is damaged, another scoop has been removed but it is not smoothed or polished to the same degree. Striations in the polished surfaces indicate a longitudinal direction of wear. The wear is so great and so regular it would almost imply that it was machine made. 
>
> Any help would be most gratefully received 
>
> Kind regards 
>
> Leigh Allen 
>
>
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