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<p>[QUOTE=&quot;kangayou, post: 976881, member: 23111&quot;]I have noticed this on both pre and post 1982 LMC&#039;s when using dirty acetone. I experimented with some common circulated cents sarting with dirty acetone and then rinsing with tap water and drying with a towel ( all intentional no-no&#039;s ). They started to obtain those purple &amp; blue tones sort of like the oils you see in the run off water in gutters shortly after rain begins to come down. Then I rubbed &quot;Pantene Pro-V Brunette Expressions Daily Color Enhancing Shampoo&quot; liberally and evenly over the whole coin and rinse with tap water withing 20 seconds (any longer it will bleach the coin to off-white) and once again dried roughly with a towel and now I had purples , blue, yellows and brown tones that moved in a rainbow tone as I swirled/tipped the coins. Something I haven&#039;t done is to check the status of those same coins to see what the long term effects would be.[/QUOTE]</p><p><br /></p>

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