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 Replies: 27 / Views: 5,873 |
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Bedrock of the Community
United States
17884 Posts |
Quote:
So then why does it not happen on all zincolns all years and MM's? It does happen on all of them (although it seems to be much scarcer on the proofs. Possibly a slightly thicker plating, or maybe the slower striking speed gives the plating more of a chance to stretch.), but it doesn't happen on every coin because usually the plating IS able to stretch far enough without splitting. |
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Pillar of the Community
United States
1781 Posts |
This coin is not the result of plating split doubling (though it may have been a contributing factor for some of the exposed areas).
This is the result of the coin being in an acidic environment; under a washing machine where cleaning agents collect, in a cup holder where coffee and soda gets spilled, in any area where chemically enhanced road salt is used, etc.
Edited by koinpro
04/22/2015 2:54 pm
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Pillar of the Community
United States
1781 Posts |
Conder101,
Proof cent planchets are double plated. Still, that doesn't seem to be enough for some of them, does it?
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Pillar of the Community
United States
1476 Posts |
 This is a SAD truth.  |
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Valued Member
 United States
290 Posts |
this looks more like its been in an acidic environment. by the looks of it by comparing the two coins because as you explained it this is what this coins looks like   |
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Pillar of the Community
United States
1781 Posts |
Slamnbass,
On the subject coin I do not see any evidence of slight movement of the die(s). With that said, the coin is in awful fad condition from the acidic environment so who knows -- but doubtful.
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Bedrock of the Community
United States
62064 Posts |
I see split plating on the tops of the "TED ST" on USA. Is that what you are looking at? After the plating is split, then the zinc gets air and the zinc starts to breakdown. Spendable
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Valued Member
United States
290 Posts |
this is a completely other coin NOT as the same as I posted at the begging of this topic, but on this coin looks like what you are explaining in your comments that you are posting I know its difficult from a picture to come to a conclusion of what it is. it just donsent look like what you are explaining, it might be and I am sorry I cant explain it as I see it cause don't know the correct terms or maybe I don't know how to show you in word form .
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Valued Member
United States
290 Posts |
a shot from another lens this one is the coin I posted from beginning of topic  |
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Bedrock of the Community
United States
62064 Posts |
That is just what I described as split plating on the mint mark area. The plating split and now the zinc is getting air and starting to deteriorate. The gray you are seeing is the zinc planchet underneath the plating. Note on the loer right edge under the mint mark and area raising? That is where the zinc is swelling upward. I've seen this many times:  The breakdown is now happening to your coin. |
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Valued Member
United States
290 Posts |
after I took this picture with my new lens I invented for a smartphone I am seeing it you were right exactly just by looking at the pic you see what you describe but also it made me think it by all the reactions an movement on the con in that areas
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Pillar of the Community
United States
2738 Posts |
It's split plating, just like Coop said. Evidently the copper plating was a bit thinner than normal, facilitating an usual amount of splitting.
Error coin writer and researcher.
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Replies: 27 / Views: 5,873 |
First Page
Posted 04/22/2015 2:53 pm
