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 Replies: 16 / Views: 18,772 |
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Pillar of the Community
United States
634 Posts |
It looks to me like it could either be plated or, because it weighs less, have has the copper removed. Does it look like zinc?
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New Member
 United States
7 Posts |
The silver toned coin is lighter than the other 1977 coin I have on hand. Wouldnt a plated coin weight more? (2.47g v 2.50g) If I am not mistaken 2.5% of the coin would be copper. If that copper was removed the weight should be around 2.44g. Upon scratching the edge to test for a plating it only revealed clean, silver toned metal underneath.
Edited by TruFord
01/05/2017 9:21 pm
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Pillar of the Community
United States
634 Posts |
Based on that, I would say it is likely that someone removed the copper coating present on zinc cents.
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New Member
United States
7 Posts |
Isn't it to heavy for the copper to have been removed? Shouldn't it be lighter than it is? Here's a picture next to a 43 I found earlier today as well.  |
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Pillar of the Community
United States
634 Posts |
When you scratched the edge, Did the color look exactly the same? Given that the zincolns are only 2.5% copper, it could make sense to me. Anyway, nice '43! They do look like that have about the same color....
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New Member
United States
7 Posts |
I tried to get a picture but my cell can't get a picture that does any justice. To the naked eye it's visibly cleaner and shinier in that area that I scratched.
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Pillar of the Community
United States
634 Posts |
Well, the way I see it, It has to be either the copper removed or some crazy toning. Either way, a pretty cool coin.
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New Member
United States
7 Posts |
It definitely is a cool coin and glad I found it.
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Pillar of the Community
United States
1963 Posts |
It looks like it was part of a science experiment.
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Rest in Peace
United States
233 Posts |
Wild Guess:
The penny was used as a *source* of copper for an electroplating event ...
... by someone who was expecting a whole lot more (pre-1982) copper.
Cheers,
/s/ ikeyPikey
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Bedrock of the Community
United States
19972 Posts |
Appears to have some cartwheel luster in the obverse picture. Does it cartwheel? More than likely, it has just had the plating removed.
Edited by BadThad
01/06/2017 09:25 am
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Rest in Peace
United States
17900 Posts |
 with removed plating. |
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New Member
United States
7 Posts |
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Valued Member
United States
430 Posts |
It looks like a 1997 to me
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Bedrock of the Community
United States
12437 Posts |
It is a 1997, not a 1977- that would be a solid copper alloy coin. Quote:
If I am not mistaken 2.5% of the coin would be copper. If that copper was removed the weight should be around 2.44g. The plating only makes up a small part of that percentage, the majority of the copper content is actually alloyed with the zinc core. The reverse picture is too small to see much fine detail but I see luster on the obverse so that would rule out post-mint stripped plating. Unfortunately, this is a very difficult error to definitively authenticate by photos alone but based on what I can see, it appears to be missing the copper plating and is a genuine error. |
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Replies: 16 / Views: 18,772 |
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Posted 01/05/2017 9:16 pm
