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1999 Dime with a bump in the center
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<p>[QUOTE="medoraman, post: 1269189, member: 26302"]Great explanation. I am used to metal fabrication, but I bet most here were not aware of the temp of coins coming off the press.</p><p><br /></p><p>I have seen these coins too, and actually have an idea. I have seen some people use blanks of metal to "cool" the tips of a welder if they are working on something and the tip got to hot. I wonder if these coins were touched by a welder tip. That would explain the heating in the center. Like I said, I have seen these rarely, I remember 3 to be exact, two looked just like the OP coin, with dots in the center, the third the dots were off to the side a bit. I have seen coins out of a fire as well, so much so that they were slightly melted, but did not see any evidence of these raised bumps, which is another reason I am postulating a welder tip to explain them.</p><p><br /></p><p>Its an idea at least.</p><p><br /></p><p>Chris[/QUOTE]</p><p><br /></p>
[QUOTE="medoraman, post: 1269189, member: 26302"]Great explanation. I am used to metal fabrication, but I bet most here were not aware of the temp of coins coming off the press. I have seen these coins too, and actually have an idea. I have seen some people use blanks of metal to "cool" the tips of a welder if they are working on something and the tip got to hot. I wonder if these coins were touched by a welder tip. That would explain the heating in the center. Like I said, I have seen these rarely, I remember 3 to be exact, two looked just like the OP coin, with dots in the center, the third the dots were off to the side a bit. I have seen coins out of a fire as well, so much so that they were slightly melted, but did not see any evidence of these raised bumps, which is another reason I am postulating a welder tip to explain them. Its an idea at least. Chris[/QUOTE]
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