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<p>[QUOTE="Insider, post: 2617774, member: 24314"]I must respect your opinion but until I see it.... Just because we can see a micro hairline scratch on a polished surface such as a die, does not mean it will reproduce as a raised line. </p><p><br /></p><p>Now, let's take a proof SE. Take a greasy rag with some grit and rub the coin. We will be left with a hairlined proof surface. Based on over 45 years of examining the surface of all types of coins from all ages using a high power stereo microscope:</p><p><br /></p><p>1. Die steel is harder than any of our usual coin alloys. You are going to need to put a decent scratch into it for it to reproduce!</p><p><br /></p><p>2. The type of minute hairlines (into the surface of the Proof SE and used to illustrate what would happen to a steel die) WILL NOT PRODUCE any effects that are visible RAISED polish lines on a struck coin at magnifications less than 40X. Therefore, it is my contention that the typical polish we see on coins in this thread were caused by a much coarser type of polishing. </p><p><br /></p><p>3. While hairlines are a type of micro scratch, NOTHING I have ever seen (using high power magnification) imparted to a coin's surface (raised) from a die <b>comes close to having any resemblance or characteristic of a hairline caused in the quote above </b>by something like a tiny piece of grit. Raised lines on a coin come in degrees of intensity. A hairline is not a scratch. A scratch is not a gouge or tool mark.[/QUOTE]</p><p><br /></p>
[QUOTE="Insider, post: 2617774, member: 24314"]I must respect your opinion but until I see it.... Just because we can see a micro hairline scratch on a polished surface such as a die, does not mean it will reproduce as a raised line. Now, let's take a proof SE. Take a greasy rag with some grit and rub the coin. We will be left with a hairlined proof surface. Based on over 45 years of examining the surface of all types of coins from all ages using a high power stereo microscope: 1. Die steel is harder than any of our usual coin alloys. You are going to need to put a decent scratch into it for it to reproduce! 2. The type of minute hairlines (into the surface of the Proof SE and used to illustrate what would happen to a steel die) WILL NOT PRODUCE any effects that are visible RAISED polish lines on a struck coin at magnifications less than 40X. Therefore, it is my contention that the typical polish we see on coins in this thread were caused by a much coarser type of polishing. 3. While hairlines are a type of micro scratch, NOTHING I have ever seen (using high power magnification) imparted to a coin's surface (raised) from a die [B]comes close to having any resemblance or characteristic of a hairline caused in the quote above [/B]by something like a tiny piece of grit. Raised lines on a coin come in degrees of intensity. A hairline is not a scratch. A scratch is not a gouge or tool mark.[/QUOTE]
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Are these polish lines?
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