18th February 2018, 12:43 PM | #11 |
Member
Join Date: Apr 2005
Posts: 3,236
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Hello Detlef,
Thanks for the pics! I wasn't directly referring to your posting and my wording possibly wasn't clear enough. I believe in these cases it's more like build-up of oil and dirt rather than typical patina. Still lower gold/silver alloys will also result in some oxidized metal, so this POV will be open to debate. Regards, Kai |
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