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 Replies: 12 / Views: 1,688 |
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Valued Member
United States
392 Posts |
Just picked up this set of 27 different date Liberty nickels today (thread below). I realize the quality is not great, but this should make an interesting start to a new collection. I set my budget for these at less than $1.00 a piece. The lot includes "4 clipped coins." Does anyone know why these coins would be clipped? Jack  http://www.ebay.com/itm/Liberty-V-N...p=true&rt=nc |
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Pillar of the Community
United States
7390 Posts |
Nice! I usually get a buck plus a piece for em in that condition sans clips! And one even appears to be a double clip too  Edited by Cascade
02/01/2016 4:03 pm
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Rest in Peace
United States
17900 Posts |
Good buy. That will be a fun collection.
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Pillar of the Community
 United States
5828 Posts |
Nice pickup |
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Pillar of the Community
United States
6370 Posts |
Unfortunately, those "clipped" coins look to be PMD. |
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Valued Member
 United States
392 Posts |
Type - A couple of questions: How do clipped coins occur at the mint, Why would someone clip them ( PMD), and finally, How can you tell whether they're pre- or post- mint damage (and is it even important)? Appreciate your wisdom. Jack |
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Pillar of the Community
United States
4963 Posts |
A clipped planchet occurs when the blanking die (the thing that punches the blanks from a sheet of metal) makes two or more overlapping impressions. That will create a curved clip. A straight clip is caused when the blanking die makes an impression that overlaps with the edge of the strip. Similarly, a jagged or ragged clip is created when the planchet overlaps with a jagged end of the strip. When these are struck into coins, the coins will retain the missing metal. The way to tell if it is genuine or PMD is the Blakesley effect. When the blanks (flat metal discs) are turned into planchets (with raised rims), they pass through a machine called an upset mill. This basically rolls the blank between two surfaces, squeezing it to force the metal on the rims up. When a clipped blank passes through, the mill can't apply pressure to the clipped area, so the rim opposite the clip will not be upset. The struck coin will have a weak or nonexistent rim opposite a clip, which is known as the Blakesley effect. However, very small clips may not display the effect. I believe that these 'clips' are PMD, as there is no Blakesley effect visible to me. Curved clip w/ strong Blakesley effect:  Edited by Numisma
02/02/2016 01:19 am
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Valued Member
United States
392 Posts |
Numisma - Thank you very, very much. You have a gift for teaching. I appreciate the time you spent helping me with this question. So maybe the PMD could be people trying to make it look like an authentic mint clip, perhaps to charge more for it. Does that make any sense? I'm just wondering why someone would deliberately clip a coin. I could understand if it were a precious metal, but nickel? Thanks again for your help. Jack |
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Pillar of the Community
United States
4963 Posts |
That sounds like a plausible explanation. If there was just one coin I would say accidental damage, but four very similar cases info at that a fraudster may be at fault.
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Valued Member
United States
392 Posts |
Also, I noticed that one of the coins is clipped (flat spots) in four places, at 12:00, 3:00, 6:00, and 9:00, which makes zero sense as an authentic clip considering Numisma's very clear explanation. There's no way that could be authentic. Jack PS - Cascade - With your Liberty nickels do you recommend soaks in hydrogen peroxide and acetone to remove some of the crud, or just to leave them ugly? Obviously, they aren't valuable but I don't want to damage them even more. |
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Pillar of the Community
United States
4963 Posts |
Quote:
Also, I noticed that one of the coins is clipped (flat spots) in four places, at 12:00, 3:00, 6:00, and 9:00, which makes zero sense as an authentic clip considering Numisma's very clear explanation. There's no way that could be authentic. Jack That's right. It's nearly impossible for this to be real. |
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Valued Member
United States
392 Posts |
Numisma - See there, you learned me good.  Jack |
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Bedrock of the Community
United States
11951 Posts |
Good buy on the nickels Thanks for making this post. I enjoyed reading it. Lot of good information |
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Replies: 12 / Views: 1,688 |
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Posted 02/01/2016 4:50 pm
