This is a most interesting link concerning Brasses in Africa, full of academic angst but at least the ancient Roman world is mentioned. Interesting comments on brass from ancient Anatolia and Oman. I find it hard to believe that Christianity can be established in Africa "Ethiopia" centuries before the classic age of European exploration and yet acedemics struggle to think that African technology is no older than the arrival of European Trade. Ivory towers
http://www3.interscience.wiley.com/c...30404/PDFSTART