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Diagnostics for Abrasive Cleaning vs. Die Scratches
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<p>[QUOTE="GDJMSP, post: 2073543, member: 112"]That is the explanation commonly given. Unfortunately, it is only partially true. Any scratch, regardless of cause, on a die or a coin, will result in a both a raised line and an incuse line. </p><p><br /></p><p>This is simple physics, not an opinion. The metal that is displaced by the scratch has to go someplace, it doesn't just disappear. And the place that it goes is a raised line right along side of the incuse line, and sometimes even 2 raised lines are formed on either side of the incuse line.</p><p><br /></p><p>That said, die scratches and coin scratches can be distinguished from one another but it requires a certain knowledge and experience level to do so.</p><p><br /></p><p>However, it is common practice for the TPGs and many collectors to consider any coin that has any raised lines at all, as being a gradeable coin. And to thus classify all of the lines on the coin as being raised, and from a single source/cause, even when they are not.[/QUOTE]</p><p><br /></p>
[QUOTE="GDJMSP, post: 2073543, member: 112"]That is the explanation commonly given. Unfortunately, it is only partially true. Any scratch, regardless of cause, on a die or a coin, will result in a both a raised line and an incuse line. This is simple physics, not an opinion. The metal that is displaced by the scratch has to go someplace, it doesn't just disappear. And the place that it goes is a raised line right along side of the incuse line, and sometimes even 2 raised lines are formed on either side of the incuse line. That said, die scratches and coin scratches can be distinguished from one another but it requires a certain knowledge and experience level to do so. However, it is common practice for the TPGs and many collectors to consider any coin that has any raised lines at all, as being a gradeable coin. And to thus classify all of the lines on the coin as being raised, and from a single source/cause, even when they are not.[/QUOTE]
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Diagnostics for Abrasive Cleaning vs. Die Scratches
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