Actually, I would like to know more about the physical
properties of copper and gold. Where can I get more
I'd suggest that you consider buying "The Theory and Practice of
Goldsmithing by Prof. Dr. Erhard Brepohl.
It's not cheap, and having said that, I wish that I had bought it
much earlier because the in it would have saved me from
some considerable moments of grief.
Theory and Practice of Goldsmithing
By Erhard Brepoh
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Manufacturer : Brynmorgen Press
Release data : 11 October, 2001