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<p>[QUOTE=&quot;-jeffB, post: 2484471, member: 27832&quot;]My take:</p><p><br /></p><p>Don&#039;t apply an agent just to the date area. Coins with the date in a big, glowing blotch are just unnecessarily ugly.</p><p><br /></p><p>Don&#039;t use hydrogen peroxide AND hydrochloric acid unless you want to dissolve the coin completely, and maybe gas yourself in the process. That mixture is far too aggressive.</p><p><br /></p><p>I&#039;ve had good luck with Buffalo restoration with a <i>slow</i> soak in plain white vinegar. It takes hours or days rather than seconds or minutes, but that&#039;s good -- it lets you soak the coin precisely long enough to reveal the detail you want. It gives the coin an even finish, not at all mistakable for an untreated coin, but more pleasant in my opinion than the drop-on-date appearance.</p><p><br /></p><p>Oh, and don&#039;t use vinegar on cents. Only nickels, as far as I know, have the metallurgic characteristics that allow acid restoration. Everything else just turns ugly colors and/or dissolves without revealing further detail.[/QUOTE]</p><p><br /></p>

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