Chris , thanks for you post.
I don't think the skin oil is issue in this case. Why?
I mentioned early about silver plate which I keep in same room as collection.
This plate let's say a week ago had nice silver color, now it's "gold"
If it's skin oil I would expect to see some "gold" stains (around fingerprints and so)
In this case, as you can see whole plate changed color..
Please let me know if I'm wrong..
I don't think the skin oil is issue in this case. Why?
I mentioned early about silver plate which I keep in same room as collection.
This plate let's say a week ago had nice silver color, now it's "gold"
If it's skin oil I would expect to see some "gold" stains (around fingerprints and so)
In this case, as you can see whole plate changed color..
Please let me know if I'm wrong..
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