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Can Anyone explain this Lincoln Roughy :)
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<p>[QUOTE="GDJMSP, post: 510328, member: 112"]Yes, rlm, I suppose I could show you very similar examples from other denominations if I wanted to take the time to search them out. But if you read the thread to the NGC board then you saw that others will back me up that such examples exist. I'll let it go at that as frankly I do not want to take the time to find pics of such examples.</p><p><br /></p><p>As I stated previously, I cannot say definitively that I am right in my opinion, for that's all it is, an opinion. But that's all anybody else has as well, including those on the NGC & PCGS boards - opinions. And all of those opinions fly in the face of the long held conclusion that these parallel lines and orange peel effects are caused by worn out dies and die polishing. And those conclusions have been formed over many years by the foremost minds in the hobby. </p><p><br /></p><p>Is it possible they are wrong and these new & different opinons are correct ? Sure, it's possible. But don't you think that over the years all of those people thought of all these possibilities as well ? Metalury after all is nothing new. The heating and annealing of planchets and dies is nothing new. Die polish lines are nothing new. Flow lines on worn dies is nothing new. These people have known and understood all of these things for decades. And probably much better than we understand them.</p><p><br /></p><p>That said, there is one thing that I cannot get past in the reasoning used to postulate that the orange peel effect is caused by a planchet defect created in the annealing process. That thing is this - any surface deformation on the planchet that is created prior to striking would be obliterated when the planchet was struck. The metal on the planchet is much softer than that of the die. And if the surface of the die is smooth then the surface of the planchet is going to be smooth because as the metal flows across the surface of the die it will be forced to be smooth. It is only marks on the die that are imparted to the coin. So if the coin ends up having an orange peel effect or parallel lines then those marks must be on the die as well. </p><p><br /></p><p>Now I am more than able to keep an open mind and more than willing to accept new ideas. But before I can do so, someone has to present me with a logical explanation as to how what I described above can be overcome. And so far, I have not seen that.</p><p><br /></p><p>Yes they are two different things. And each has a separate and distinct cause. But both things are caused by the surface of the die - not by the surface of the planchet.</p><p><br /></p><p>And before someone else brings it up, yes I am well aware of the bubbling issue that plated cents have. I am also aware that occasionally deep scratches on planchets are not totally obliterated by striking. But those scratches do not cover the majority of the coin and in case they are always incuse not raised. And both of those things are quite different than what we are discussing here.[/QUOTE]</p><p><br /></p>
[QUOTE="GDJMSP, post: 510328, member: 112"]Yes, rlm, I suppose I could show you very similar examples from other denominations if I wanted to take the time to search them out. But if you read the thread to the NGC board then you saw that others will back me up that such examples exist. I'll let it go at that as frankly I do not want to take the time to find pics of such examples. As I stated previously, I cannot say definitively that I am right in my opinion, for that's all it is, an opinion. But that's all anybody else has as well, including those on the NGC & PCGS boards - opinions. And all of those opinions fly in the face of the long held conclusion that these parallel lines and orange peel effects are caused by worn out dies and die polishing. And those conclusions have been formed over many years by the foremost minds in the hobby. Is it possible they are wrong and these new & different opinons are correct ? Sure, it's possible. But don't you think that over the years all of those people thought of all these possibilities as well ? Metalury after all is nothing new. The heating and annealing of planchets and dies is nothing new. Die polish lines are nothing new. Flow lines on worn dies is nothing new. These people have known and understood all of these things for decades. And probably much better than we understand them. That said, there is one thing that I cannot get past in the reasoning used to postulate that the orange peel effect is caused by a planchet defect created in the annealing process. That thing is this - any surface deformation on the planchet that is created prior to striking would be obliterated when the planchet was struck. The metal on the planchet is much softer than that of the die. And if the surface of the die is smooth then the surface of the planchet is going to be smooth because as the metal flows across the surface of the die it will be forced to be smooth. It is only marks on the die that are imparted to the coin. So if the coin ends up having an orange peel effect or parallel lines then those marks must be on the die as well. Now I am more than able to keep an open mind and more than willing to accept new ideas. But before I can do so, someone has to present me with a logical explanation as to how what I described above can be overcome. And so far, I have not seen that. Yes they are two different things. And each has a separate and distinct cause. But both things are caused by the surface of the die - not by the surface of the planchet. And before someone else brings it up, yes I am well aware of the bubbling issue that plated cents have. I am also aware that occasionally deep scratches on planchets are not totally obliterated by striking. But those scratches do not cover the majority of the coin and in case they are always incuse not raised. And both of those things are quite different than what we are discussing here.[/QUOTE]
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Can Anyone explain this Lincoln Roughy :)
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