Good afternoon folks,
 
In the course of googling for other things (metallurgy of early iron wire), I came across the following sites that may be of interest to some of you.
 
Brian Newbury of Lehigh University (Pennsylvania) studied the metallurgy of early astrolabes. The URL below is to a poster (170 kB) summarising some of his research.
 
 
Googling for "metallurgy" + "astrolabe" + "brian newbury" gives some other results.

Cheers, John
 
John Pickard
[EMAIL PROTECTED]

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