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Pillar of the Community
 United States
7955 Posts |
I'm not at all knowledgeable about error types, but discovered this 1971-D Jefferson nickel which is in near uncirculated shape, but has something interesting going on reverese at the top of the portico (also a bit at the cupola roofline). Is this delamination or something else? ALso, I've noticed "splay" or whatever that effect between the cupola and PLURIBUS UNUM is on many Jeffersons. Has this been explained elsewhere on CCF?   Edited by tdziemia
08/08/2018 10:23 am
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Bedrock of the Community
United States
10284 Posts |
I think it is post mint damage. I believe these circular scratches are from end coins of a machine wrapped roll suffering some sort of machinery damage when they are in the wrapping process. But if you let your imagination go, I see the bust of Columbus.  Edited by TNG
08/07/2018 12:44 pm
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Bedrock of the Community
United States
62064 Posts |
Or if it is raised above the coin, it might be glue? The fields and both sides of the building are showing heavy die flow lines. (thus the whiter color) But the area in question is showing a copy of the roof line lower on the building, while the semi circle window is to the right and higher. So it appears altered, not a mint error. PSD (Post-Strike-Damaged) |
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Rest in Peace
10197 Posts |
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Pillar of the Community
United States
4212 Posts |
I believe that's the right side of the dome appearing in that mess, meaning one was placed on top of another,
then sqaahed, hammered, etc
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Pillar of the Community
United States
7516 Posts |
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Bedrock of the Community
United States
62064 Posts |
The yellow area looks like a grease prevention issue. Red, glue issue. I don't feel it was damaged as the transfer design in not a match.
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Bedrock of the Community
United States
74662 Posts |
It looks like Post Strike Damage to me. That means that it happened after it left the U.S. Mint.
Errers and Varietys.
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Pillar of the Community
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7955 Posts |
Thanks for all the responses thus far. Looks like on balance, most responders are leaning toward post strike damage. A couple of follow up questions, and some additional observations from my side (please hang in there with me). Quote:
The fields and both sides of the building are showing heavy die flow lines. (thus the whiter color) Can anyone explain why this happens during a coin strike? And why Jeffersons seem especially prone to it? To me, this means the metal is not "flowing" (technically, I suppose the better term is deforming) as it should in order to give a smooth surface. More friction at die surface? Inadequate stamping force? Also, Crazyb0, thanks for pointing out that the strike is slightly tilted or off center (though the flow lines still seem to be symmetric about the center of the coin, showing above the dome, on both wings of the building, and below "FIVE CENTS") Here are two things I see on my original photos which have not received comment yet: - the area on the cupola outlined in red looks like delamination to me. - please look at the areas outlined in orange. The shape of this part of the building on the right is different; a corner has been displaced in a major way. Is this consistent with PSD or with a die or strike issue?  ANd finally, I went back and looked at a photo I took ata a very shallow angle to try and determine whether the ugly area was raised. I hadn't looked very closely before, but it looks like the C in MONTICELLO sits amid or atop this mess. I know that sometimes an odd photograpic angle can give an artifact, but this seems like too well formed to be an artifact.  Edited by tdziemia
08/08/2018 10:08 am
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Bedrock of the Community
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10284 Posts |
I take back my wrapper theory. Maybe it is a struck through lamination from another nickel. I do see the "C".
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Pillar of the Community
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7516 Posts |
I am not sure about being a Lam issue. After looking at the very last picture it does look like glue as Coop said.
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Pillar of the Community
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7955 Posts |
Quote:
Maybe it is a struck through lamination from another nickel. I do see the "C". I was wondering if such a thing could happen. Of course, the addition of a bit of unwanted metal might also cause die to tilt during striking (Crazyb0 suggestion upthread) and/or flow problems, I would guess? If I wanted to check for glue, I suppose I can see if dissolves in acetone? |
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Bedrock of the Community
United States
74662 Posts |
Could it be Die Damage? Did something brittle get into the striking chamber and damaged the reverse die?
Errers and Varietys.
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Pillar of the Community
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7955 Posts |
Well, I'm at least glad to have posted something that's a little difficult to diagnose  When I saw the image of a C in the last photo, I did wonder if a lamination from an earlier strike could have carried over to this coin (not being experienced enough in this area to know if that's possible). This coin also has a small lamination on the cupola (I think), so maybe there was batch of flawed metal running through the mint at the same time. I suppose that doesn't explain why a corner of the building also got knocked off (the bit circled in orange). That sounds more like die damage? Finally (again, my ignorance of Jeffersons is showing), the last O in MONTICELLO is completely different from the first. I don't see that on the small number of photos I have of other Jefferson nickels (though they are all earlier dates). Edited by tdziemia
08/08/2018 1:39 pm
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Bedrock of the Community
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74662 Posts |
Errers and Varietys.
Edited by Errers and Varietys
08/08/2018 1:52 pm
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Pillar of the Community
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7955 Posts |
Thanks very much, EandV. Certainly that looks closest to the irregular pattern on mine (even if mine isn't as catastrophic ... even minus the Cud). |
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Replies: 18 / Views: 9,090 |
Posted 08/07/2018 12:51 pm
