What is the characteristic surface texture? And how might it be affected by
the weathering of glass in various soils? I have never been fortunate
enough to find anything bevelled..

At 03:58 PM 11/30/2001 +0000, you wrote:
>In my experience (in Britain) mirror glass of this date is usually clear and
>can be recognised by bevelled edges if you are lucky or by the
>characteristic surface texture where the backing has been. It also tends to
>be slightly on the thick side but I don't know of any ststistical study.
>
>paul courtney
>leicester UK
>
>----- Original Message -----
>From: "Nancy O'Malley" <[log in to unmask]>
>To: <[log in to unmask]>
>Sent: Friday, November 30, 2001 1:48 PM
>
>
> > What about mirror glass? 18th century sites in Kentucky usually have very
> > small quantities of glass of any kind, but a few fragments of flat glass
> > (usually clear or light green) occasionally turn up. Probate inventories
>of
> > the time period often mention "looking glasses" as one of the very few
> > glass items in the household. Since the backing has never been preserved
>on
> > any of the very few flat glass artifacts I have from undisputed late 18th
> > century sites, I have never been comfortable making an unequivocal i.d.
>for
> > mirror glass but it seems like a distinct possibility to me. Does anyone
> > know of any thickness data taken on 18th century and later mirrors?
> >
> > At 11:03 AM 11/29/2001 -0800, you wrote:
> > >Window glass from the 18th century tends to be clear/aqua colored and
>very
> > >thin. I vote for the case bottle.
> > >
> > >
> > >At 11:25 AM 11/29/01 -0500, you wrote:
> > > >If I have a piece of flat green glass from a 18th century historic
>site.
> > > >How do I know if it is window glass or a fragment of case bottle?
> > > >
> > > >
> > > >
> > > >
> > > >Roberta Charpentier
> > > >Archaeology Lab Supervisor
> > > >Mashantucket Pequot Museum and Research Center
> > > >110 Pequot Trail
> > > >Mashantucket, CT  06339
> > > >Email:  [log in to unmask] <mailto:[log in to unmask]>
> > > >Phone:  860-396-6936
> > > >Fax:  860-396-6914
> > >
> > >
> > >Anita Cohen-Williams
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