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So, with all of the 2014 "struck-through rim fragments" we have been seeing posted here, I wondered about what you guys thought was happening here. Most of them seem to be missing a rim section AND show the struck-through on the same coin. I am thinking this must be the result of a mechanical problem during the striking process. Do you think the feeder finger is shaving a piece of metal off the rims? Would there be any other part of the process that could be the culprit? What are your thoughts on this. Seems to be getting more and more prevalent.
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Your theory is about the same as mine Will....but I wish we could find a slow motion video of coins being struck -
I am trying to get my head around this possibility....
as I understand it... the current striking presses run horizontally...
the planchet prior to striking have an upset rim but it is small, and not quite sharped like the anomalies we are looking at.
after the strike is when you would have the "rim" we are used to seeing.
for this to be a possibility...
a struck coin would have to have part of it's rim cut off while being removed from the press, that part fall onto the planchette or die before striking, then struck into the coin as a strike through, coin is then removed and the rim scrap dislodge it self from coin or die.
while the coin and dies are in a vertical stand striking side to side?
and all they always on the REVERSE?
I just don't see this ...
has anyone checked to see if they are from the same die?
if they are the same die and the dies run up and down could it be a piece of metal floating on the die?
are the presses run up and down ... or side to side?Last edited by onecent1909; 03-02-2014, 09:55 AM.Member: Florida State representative for the ANA, Florida state representative for CONECA, F.U.N. and the Ocala Coin ClubComment
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I do not believe that these marks are struck through foreign objects, but rather rim to coin damage caused by one coin striking the other.ANA, CCC, CONECA, FUN, Fly-In-Club, NLG & "The Error-Variety Education Consortium"Comment
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All opinions expressed are not necessarily shared by willbrooks or his affiliates. Taking them may result in serious side effects. Results may vary. Offer not valid in New Jersey.Comment
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As will said all the examples I have found have a sliver of rim missing the same exact size as the anomaly. There is one example I posted where the struck through is so large I don't think it could be damage from another coin contacting it.Comment
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I disagree with BJ on this. I know Im not an expert but my theory is the rim chipped and landed on coin while being struck. If you personally want to see one BJ Ill send you one to have.Last edited by Jacob; 03-02-2014, 10:49 AM.Life is not about greatness but on the impact of good onto others. It is a matter of how much one shines. Explains why I like shiny coins.Comment
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Most of the images that I have seen of the anomalies are not size related back to the coin that they came on. And yes, I would like to see one in hand. Thanks.
BJ NeffANA, CCC, CONECA, FUN, Fly-In-Club, NLG & "The Error-Variety Education Consortium"Comment
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I have found 2012's and 2013's. They are all on the obverse. There is a rim sliver missing, and (often right next to where it is missing) is a raised piece of metal exactly the same size of the piece missing. I respect BJ's opinion very much, but having some to look at in hand, there is no doubt in my mind that they are pieces of the rim "sliced" off and struck into the coin.
Wasn't the mint talking about changing the process of minting to save money? I am not sure if they did or not.Comment
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Just like any struck-through, the "foreign" object might be retained by the coin and be "raised," as on your coins, or might fall away after the strike and leave a depression, like some of the others we are seeing posted. Furthermore, as mentioned above, the sliver may stay stuck onto the die and continue to strike other coins, resulting in some that show the anomaly, yet still have a full rim, or have a completely independent rim "gouge" of their own which might not exactly match in size/shape. At any rate, there is little doubt in my mind that these are struck-throughs, but my question is how exactly is it occurring?All opinions expressed are not necessarily shared by willbrooks or his affiliates. Taking them may result in serious side effects. Results may vary. Offer not valid in New Jersey.Comment
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Having found a dozen or so now, they are all missing rim metal, and the missing part of the rim is exactly the size/shape of the struck through area. It may be that the rim metal was already loosened when the rim was formed on the blank planchet. As Will said, perhaps the feeder fingers are pushing the rim piece onto the planchet, but I'm not sure that would explain how so many of the rim pieces fall onto the planchet rather than some other random direction. An alternative theory is that at some point during the transportation of the cent to the die, there is some electromagnetism or static electricity (perhaps from the collar) that repels the rim piece toward the center of the planchet.
Thanks for this thread, Will. I've asked this question here a couple times before, but this thread is getting much more in depth than mine did.-Sean
Search started in Sep 2011. 913,650 cents searched as of 9/24/13.Comment
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Also, we may be looking at different sources. There may be hits causing some marks, rim burrs causing others and even debris from other coins causing hits on planchets. So there maybe multiple sourcesArJohn
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