Re: re info on old bottle for M.Cotton

"MaNu" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> Hello Michael,
> in my opinion the thick encrusted layer should not be removed. This is
just
> the deformation of the glass, so called irrisation, this occurs on bottles
> that have been burried in the ground or have been exposed to sea water.
The
> glass is affected because of a chemical reaction between the salty sea
water
> and the minerals in the glass. The irrisation gives the bottle something
> extra and also has a historic value. It is quite common that this
irrisation
> will (can) flake off. You will have to handle the bottle with extreme care
> and do not expose it to severe temperature changes.
>
> All the best,
> MaNu
>
>

Thank you for your reply. I also posted the same query on the
antique-bottles.net forum and someone there advised me to consult an
archaeological society for advice. I have since emailed such a society in
Portsmouth and I am waiting for a reply.

Thank you once again.

-- 
Michael Cotton







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