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<p>[QUOTE=&quot;GDJMSP, post: 1020069, member: 112&quot;]That diamond paste, it&#039;s placed on the zinc plates. It is mentioned several times in the articles. It is also mentioned that they use different grits for business strike and Proof dies - as one would expect them to do.</p><p><br /></p><p>And Dick, I agree that whatever caused those lines on the coin linked by Mike absolutely had to be caused by hand. But what does not make sense is that they only cover small portions of the coin so equally small portions of the die had to be affected. That is assuming they were all on the die.</p><p><br /></p><p>My point here is this - take any cent, put your index finger on it. Now how much of that coin is covered by your finger ? Now imagine moving your finger around a sif you were trying to polish it. How much more of the coin would then be affected ?</p><p><br /></p><p>We have to think of all these things when talk about what caused this or what caused that. It is all too easy to make assumptions and think that any lines on a coin were cause dby this or that just because we read about it once. And yes, even the experts do that.[/QUOTE]</p><p><br /></p>

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