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<p>[QUOTE=&quot;Clawcoins, post: 3585473, member: 77814&quot;]If you notice all the High spots are worn down</p><p><br /></p><p>So .... someone may have rubbed it against a flat surface such as sandpaper.</p><p>Maybe, since it was a Junk Lincoln as it has a zinc core and 8 micron thin copper flash plating, they were curious about the zinc.&nbsp; And thus rubbed both sides against something abrasive just to see ... because they were curious.</p><p><br /></p><p>The next step for curiosity sake, is to place it in a small vial of muriatic acid and watch the zinc get eaten away.&nbsp; Then you&#039;d be left with pieces of thinly stamped copper sheet with no internal structure at all.</p><p><br /></p><p>of course, at that point it wouldn&#039;t be worth anything so you have lost 1 penny of value but gained undeterminant amounts of knowledge.&nbsp; (or just watch YouTube videos of it).</p><p><br /></p><p>Of course, do not play with any acid unless you know what you are doing. So .. here&#039;s a video of it.</p><p>[MEDIA=youtube]UWk0ldPi4nk[/MEDIA][/QUOTE]</p><p><br /></p>

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