Simon:
Thanks for posting this very interesting article. I got to read it through last night and it contains some fairly thorough scholarship on the production of the various copper alloys and their patination. Metallurgy is definitely not my field, and dredging up college chemistry from many years ago takes a while, but this article looks like an important contribution to the field and would certainly classify as "serious research" in terms of its methods and analysis.
Do we have any metallurgists on the Forum who would care to comment?
Ian.
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