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<p>[QUOTE=&quot;wacky1980, post: 1319576, member: 32383&quot;]i tried this test last night, and the color did not change. so i went a step further and rubbed a soft eraser lightly on the same area. the result was a cleaned copper look in the rubbed area. </p><p><br /></p><p>i don&#039;t want you to think i&#039;m doubting your opinion, because i&#039;m absolutely not doing that. it just appears to me that <i>something</i> was done to this coin to cause the coloration, and i haven&#039;t found an explanation that seems to fit the situation.</p><p><br /></p><p>is it simply not possible that a clad layer could be &quot;burned&quot; off completely by an acid treatment, and the copper underneath remain preserved?</p><p><br /></p><p>to add: i don&#039;t have the quarter on me at work today, so i&#039;ll have to wait until later this afternoon to post a picture of the coin post-rub-test.[/QUOTE]</p><p><br /></p>

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