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<p>[QUOTE=&quot;Michael K, post: 26082690, member: 78298&quot;]You can&nbsp; put it in white vinegar with a few drops of hydrogen peroxide.</p><p>The date will usually appear (use a bright light and some magnification like an eye loupe if you can&#039;t see it with the naked eye). However, if you use too much HP, or leave it in too long the coin will have an unnatural whitish appearance. So for any rare dates this is a Catch 22. I can&#039;t read the date, now I can read the date but the coin has been etched and the value of the rare coin is a fraction of what it was.[/QUOTE]</p><p><br /></p>

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