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 Replies: 14 / Views: 4,034 |
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Valued Member
Canada
287 Posts |
This penny is uncirculated from a mint roll. It has full luster, no rim damage, and no scratches. I would grade it at a minimum of MS-65. However, the surface is very bumpy on both the obverse and reverse all the way out to the beads. 1) What causes the coin to look like this ? 2) How does this effect the grade of the coin?  |
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Pillar of the Community
Canada
1733 Posts |
Love to see that one under a microscope... what year is it? I don't know what this is exactly, but if you attempt to nickle plate over top of a non prepared copper plate and then copper plate the result it looks something like this because the nickel plating breads up on weak points in the copper plating below it. I've obviously made mistakes in the plating process myself  Edited by Ugly
05/07/2010 9:54 pm
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Valued Member
 Canada
287 Posts |
This is about as close as I can get with the cameras available to me tonight.   |
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Valued Member
Canada
287 Posts |
On the Obverse the bumps cover the entire field out to the beads, but does not appear to be on the raised lettering.
On the reverse the bumps cover almost the entire field and the leaf reliefs. It does not appear on the raised lettering, the twig surface, or between the beads and the word 'CANADA'. It is greatly reduced but still somewhat present between the '1 CENT' lettering and the beads.
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Pillar of the Community
Canada
1733 Posts |
I'm considering other options but given the strike detail it's not something obvious like grease. If this is a replating error it would be too heavy by a fraction of a gram if you have any way of weighing it accurately. I should try stripping a copper plated penny to give you an accurate weight.
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Valued Member
Canada
287 Posts |
I have some ' Struck Through Grease' and this does not appear to be similar to them. I'm traveling to Kitchner tomorrow morning (early so this is my last post tonight)and I will be stopping in a coin shop there. I'll ask them if they know. Our coin club meets Monday night and I'll show it around then. If I do not get a reasonable answer, maybe Tuesday I'll post it to you for a better look. I'm putting together a package to send in for grading and I do not want to send it if it is considered an error coin. It is my understanding that the coin grading company my club uses does not grade error coins. Good night, and thanks for your help. Oh, my scale only does 1 gram increments so it would not be much help. Maybe I can get a better one tomorrow. Edited by rikcando
05/07/2010 11:21 pm
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Pillar of the Community
Canada
1733 Posts |
I dug through some of my plating errors notes and came up with another possibility;
skipping the washing process right after the nickel plating - going straight to copper after the nickel strike. Without treating the nickel finish properly the copper can blob.
That's all I said in the note :/ and apparently I was working on an interior cabin boat decal..
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Valued Member
Canada
287 Posts |
Would you be able to tell if you had it in hand, without taking it apart? I am hoping for a non-invasive test. :)
The copper is not 'blobbimg' on the entire surface of the coin, so I would expect that at least part of the coin was washed. The perimeter of both sides and the edge are perfect.
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Pillar of the Community
Canada
1733 Posts |
I'm not sure having it in hand would help. I'd advise getting it weighed as accurately as possible and taking a full high res shot front and back and posting that somewhere we can see the larger images (photobucket type thing). I'll ask the platers group if they have images that match the surface and what the plating flaw is.
In terms of everything else, there's really two possibilities that seem to fit the evidence... it went through the process twice or it missed part of the normal/complete process.
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Valued Member
Canada
287 Posts |
I did some scans with my flatbed but I do not think they will help at all. It does up to 4800 dpi, so I did 1200, 2400, and 4800 in true color and grayscale. I have a microscope at work, but no cameras are allowed there. I'll get something done, I'm not done with this one yet. Thanks for your help, and patience. http://s649.photobucket.com/albums/...998%20Penny/ |
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Pillar of the Community
Canada
1733 Posts |
OK this is clearer to me...
It's a zinc cent that got stuck in the cleaning bath for an extra cycle or three before it was transferred to plating. It should be a tad underweight but not much. The surface of the zinc slug was eaten away before it was plated.
I can absolutely reproduce this error. I thought this was a 2008 steel penny for some reason that's why it took me so long to figure it out.
Edit:typos
Edited by Ugly
05/08/2010 10:56 pm
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Valued Member
Canada
287 Posts |
Thank you so much.
Now, about question #2..?
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Pillar of the Community
Canada
1733 Posts |
It's an obvious plating error in my opinion. I'd think it would get an MS grade and a plating error tag. Because it is mint state, there's a value but like with other error types the sample is too small to determine a value.
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Valued Member
Canada
287 Posts |
Thank you for your help and insight on both questions. I'm sending this coin in for grading with a package of others, so I'll post just what they said when I get it back. I send them in with the coin club so it may take a couple of months to get it back.
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Valued Member
Canada
287 Posts |
I sent this coin to ICCS and made a comment on the form 'Plating Dbl Bath'. It came back yesterday as MS65 and the only comment on it is 'RED'.
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Replies: 14 / Views: 4,034 |
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Posted 05/07/2010 10:42 pm
