[Bonetools] Beading on comb teeth
Alice Choyke
h13017cho at iif.hu
Fri Oct 23 22:35:58 CEST 2009
Dear Anne - don't forget you promised me some beautiful 'bone tools of the
month' for the website. That goes for everyone else who reds this mail.
Alice
On Fri, Oct 23, 2009 at 10:40 AM, Anne Brundle
<Anne.brundle at orkney.gov.uk>wrote:
> I’ve just looked back over the Orkney combs and realize that there is
> beading at the bases of the teeth in this double-sided comb from Saevarhowe
> in Birsay (Orkney Museum SH 1984.325). The more heavily-worn combs in our
> collection tend to be those with copper-alloy rivets, and the beading tends
> to be towards the points. See the comb from Pool, top right in the attached
> image.
>
>
>
> Is there a fundamental difference in action between combing long and short
> hair? I think managing long hair might well use the whole length of the
> teeth but shorter hair wouldn’t.
>
>
>
> Anne
>
>
> ------------------------------
>
> *From:* bonetools-bounces at listserv.niif.hu [mailto:
> bonetools-bounces at listserv.niif.hu] *On Behalf Of *Alice Choyke
> *Sent:* 22 October 2009 18:29
> *To:* Mailing list for archaeologists of the research group for the study
> ofobject and waste of bone,antler. ivory and horn.
>
> *Subject:* Re: [Bonetools] Beading on comb teeth
>
>
>
> Yes, but how often do you see a comb that was used by an entire family
> daily for almost 40 years?
>
> A.
>
> On Thu, Oct 22, 2009 at 6:03 PM, S O'Connor <S.Oconnor at bradford.ac.uk>
> wrote:
>
> Thanks Alice. As Anne says, the wear on the horn comb teeth is at a
> different location. Your pictures of bone, antler and ivory comb tooth wear
> are more what I am used to seeing. Marloes has had lots of horn combs and I
> don’t remember wear down at the bottom of the teeth like that on hers
> (please do correct me Marloes if I am wrong), so perhaps the way the comb is
> being used here is an important factor.
>
>
>
> Sonia
>
>
>
> [image: So ne ya]Dr Sonia O'Connor FSA FIIC ACR
>
> Archaeological Sciences
>
> Division of AGES, University of Bradford
>
> Bradford, West Yorkshire, BD7 1DP
>
> UK.
>
>
>
> tel 01274 23 6498 (office) 5210 (lab)
>
> fax 01274 23 5190
>
>
>
>
>
> *From:* bonetools-bounces at listserv.niif.hu [mailto:
> bonetools-bounces at listserv.niif.hu] *On Behalf Of *Alice Choyke
> *Sent:* 22 October 2009 14:40
> *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] Beading on comb teeth
>
>
>
> Dear Sonia and other comb enthusiasts,
> I am sending images of a VERY worn ivory comb from Visegrad that I
> suspect was used frist by a Hungagarian owner and then for genration by the
> 'new' Ottoman owners. Thee is als oan example of wear on a 15 year old bone
> comb that used to belon to a friend of mine who used it everyday, twice a
> day with long hair, a less used but still quite worn ivory late medieval
> comb from Buda and a quite worn antler comb from a AD 3rd c. Sarmation
> settlement. Enjoy!
>
> Alice
>
> On Thu, Oct 22, 2009 at 11:16 AM, S O'Connor <S.Oconnor at bradford.ac.uk>
> wrote:
>
> Dear All,
>
>
>
> I must add that all these materials, will probably wear at different
> rates. Also the detailed form of the wear will probably vary between these
> materials, as the pattern of this should reflect a combination of the
> function of the comb, the material of the comb and the structure of that
> material.
>
>
>
> Horn is formed from layers (visible in Alice’s photo) of finely corrugated
> sheets of mineral stiffened keratin protein. Working of the surface of the
> comb exposes these layers at the sides and edges of the teeth. If these
> layers wear at different rates (perhaps due to differences in mineralisation
> or organisation of the protein matrix) this will produce slight grooves in
> the surfaces of the comb teeth were the more readily worn layers are
> exposed. Once these grooves are formed the hair will catch in them,
> increasing the wear at these points. As the grooves get more pronounced
> more fibres will get funnelled into them as the comb is pulled thought the
> hair, increasing the wear still further at these points (even into more
> resistant layers of the horn) eventually causing the ‘beading’.
>
>
>
> Bone and antler are more heavily mineralised than horn, their organic
> component is collagen rather than keratin, and their structures are entirely
> different to horn. In addition, the physical properties and structure of
> bone compact tissue are different to those of antler. So although the
> mechanism of wear (abrasion by hair/grease/dirt combination) is the same,
> the ‘necking’ or ‘beading’ produced should be different in detail in these
> different materials. Has anyone observed this or done any experimental work
> in this area?
>
>
>
> Sonia
>
>
>
>
>
> Dr Sonia O'Connor FSA FIIC ACR
>
> Archaeological Sciences
>
> Division of AGES, University of Bradford
>
> Bradford, West Yorkshire, BD7 1DP
>
> UK.
>
>
>
> tel 01274 23 6498 (office) 5210 (lab)
>
> fax 01274 23 5190
>
>
>
>
>
> *From:* bonetools-bounces at listserv.niif.hu [mailto:
> bonetools-bounces at listserv.niif.hu] *On Behalf Of *Alice Choyke
> *Sent:* 21 October 2009 21:53
> *To:* tonya.largy at verizon.net; Mailing list for archaeologists of the
> research group for the study of object and waste of bone, antler. ivory and
> horn.
> *Subject:* Re: [Bonetools] Beading on comb teeth
>
>
>
> For example - this is a horn comb from the romanian village of Szek which
> was in use by a family daily for around 40 years.
>
> Alice
>
> On Wed, Oct 21, 2009 at 6:59 PM, Tonya Largy <tonya.largy at verizon.net>
> wrote:
>
> Could someone send a photo of a comb with "beading" on the teeth? This is
> a new concept to me.
>
> Thank you,
>
> Tonya Largy
>
> Alice Choyke wrote:
>
> One thingI can say that the notching or beading on bone/antler/horn/ivory
> combs seems to start seriously developing after ten years. I have an example
> of daily use by a single individual (I will send you my comb article) with
> long hair who used the comb (bone) primarily to clean her hair of grit after
> a day in the fields. Her family had another comb (this one of horn) which
> was used for similar purposes by everyone in the family for about 20 years
> and then by the mother alone for another 20 before being put away. That one
> has very pronounced 'beading' on it. I think the lesson to draw is that
> specialists have seriously underestimated the length of time such objects
> were used in the past. If I forget to send my article remind me.
> Best,
> Alice
>
> On Wed, Oct 21, 2009 at 12:57 PM, Anne Brundle <Anne.brundle at orkney.gov.uk<mailto:
> Anne.brundle at orkney.gov.uk>> wrote:
>
> Does anyone on the list know of any studies of how quickly the
> teeth of bone or antler toilet combs may become beaded? And might
> the way hair was treated make a difference to the extent of wear?
> Sorry if this is a perennial question, I only just joined!
>
>
> Thanks
>
> Anne
>
>
> Anne Brundle
>
> Curator of Archaeology
>
> The Orkney Museum
>
>
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> ------------------------------
>
> This email and its attachments are intended only for the use of the
> individual to whom it is addressed. It may contain information that is
> privileged, confidential and exempt from disclosure under the applicable
> law. Any views or opinions expressed are solely those of the author and do
> not necessarily represent those of Orkney Islands Council.
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> If you are not the intended recipient, you are hereby notified that any
> dissemination, distribution or copying of this communication and its
> attachments is strictly prohibited.
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> If you have received this communication in error please notify us by
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