Yes one possibility is that you are seeing the underlying zinc core beneath a too-thin copper plating. It doesn't happen much anymore, but a silvery tone on copper also can come from putting mercury on it.
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz






























