Message:

<p>[QUOTE=&quot;Michael K, post: 3262608, member: 78298&quot;]Baking soda will get it clean, and ruin it just as lemon juice and salt will also ruin copper. Lemon juice and salt are great for copper jewelry, they shine right up.</p><p>But for coins even though they are &quot;shiny&quot; they are permanently damaged.[/QUOTE]</p><p><br /></p>

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