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Re: Circa 1926 Swiss-Cased 14k Green Men's Tank [message #15427 is a reply to message #15424] Wed, 08 September 2021 19:56 Go to previous messageGo to previous message
afire is currently offline  afire
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Registered: May 2013
Location: Wisconsin
Gruen Authority
That would make sense, now that I think of it. I've seen that watch before, and IIRC, it only happens on gold over sterling. 14k Green typically has silver making up nearly all of the non-gold content. So this purple and pink patina is presumably the interaction of silver and gold.
 
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