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<p>[QUOTE=&quot;VistaCruiser69, post: 25297159, member: 107016&quot;]I first started noticing these about 10 years ago.&nbsp; And that was before I was on this forum.&nbsp; I too thought it may be an error and with some value.&nbsp; What I&#039;ve also noticed is from the start of zinc pennies in 1982 until the late 90&#039;s, I never seen a penny with this type of issue.&nbsp; They must have changed something with the materials and/or process that causes it to do this starting in the early 90&#039;s.&nbsp; I&#039;m thinking that it has to do a lot with the thickness of the copper layer.&nbsp; The first maybe 10 years of making these coins I don&#039;t think this issue was all that common compared to like the last 15 years.[/QUOTE]</p><p><br /></p>

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