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<p>[QUOTE=&quot;John Burgess, post: 3627297, member: 105098&quot;]It&#039;s not linear plating blisters. Those are roller lines, also known as planchet striations.&nbsp; Those ones are unusually deep where the strike hasn&#039;t smashed them out. And only smashed out at the most highest points on the coin.</p><p><br /></p><p>It&#039;s from the planchet making process when the zinc is rolled out to get it to spec thickness and debris got on the rollers and grooved the zinc and it happened before plating.</p><p><br /></p><p>this coin is still not worth any more than a cent but it was quite common through the 1982-2008 to some lesser degree normally it&#039;s not usually visible through devices. I havent seen it on the newer shield cents. Its not considered a mint error, it&#039;s a planchet flaw, but it is pre-strike, in fact it would be pre-mint done at the planchet manufacturers much like plating bubbles or blisters would also be planchet flaws and would also be there before the strike and start bubbling up after the strike some time.</p><p><br /></p><p>Difference is you can depress plating bubbles or linear plating blister&#039;s with a toothpick and it will &quot;give&quot; some like a bubble would the bubble or blister can be pressed down and it&#039;s a matter of time before the copper &quot;pops&quot; and exposes the zinc. This coin doesn&#039;t do that at all anywhere. The plating is good it&#039;s just that the zinc under it got scatched in the rollers deep enough to still have the scratches visible after the strike. And the plating doesn&#039;t have a countdown and won&#039;t be coming off any time soon there are no gas pockets forming under the plating from the zinc rotting.</p><p>[ATTACH=full]972827[/ATTACH] [ATTACH=full]972826[/ATTACH][/QUOTE]</p><p><br /></p>

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