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Copper -1935 Buffalo Nickel

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Brandmeister's Avatar
United States
6879 Posts
 Posted 09/04/2026  10:54 am  Show Profile   Check Brandmeister's eBay Listings Bookmark this reply Add Brandmeister to your friends list Get a Link to this Reply
There are many basic chemical experiments that can raise a thin layer of copper to the surface of a U.S. five cent coin. Environmental toning can do it, too.
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Dearborn's Avatar
United States
105202 Posts
 Posted 09/04/2026  7:40 pm  Show Profile   Bookmark this reply Add Dearborn to your friends list Get a Link to this Reply
Interesting coin. I have never seen a copper plated Buffalo coin before.

You reported that this weighs 5 grams, so that would rule out a copper cent planchet.

Back in the 1930 or so, the US minted coins for other countries, however I cannot think of any that required a 5g copper planchet. a bit of research would be needed there.

But as stated above, your next move is to get an XRF done.


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Petespockets55's Avatar
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 Posted Yesterday   5:44 pm  Show Profile   Bookmark this reply Add Petespockets55 to your friends list Get a Link to this Reply
I agree about ultimately getting an Xrf scan done to determine the metallic content.

To me this looks different than discoloration from being in the ground. It looks transluscent and there is a hit on the rim looking normal in color.
You could try a soak in acetone to see if there is any reduction surface discoloration.
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