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<p>[QUOTE=&quot;Kevin Mader, post: 8617561, member: 106826&quot;]I would have done the same thing, Larry.&nbsp; If you want to experiment further, do a higher percentage of white vinegar and lower for the hydrogen peroxide.&nbsp; It will slow down the etch and give you more control on revealing a date and anything else (1918/17?).&nbsp; I think we have MD here, but as I noted, I would have finally pickled the nickel to find out one way or the other.[/QUOTE]</p><p><br /></p>

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