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<p>[QUOTE=&quot;900fine, post: 833542, member: 6036&quot;]Perhaps there are some exceptions.</p><p><br /></p><p>Bob Grellman is the world&#039;s premier expert on Braided Hair large cents. Those coins are extraordinarily difficult to attribute since the die differences are minute. A primary means of attribution is to look for die polishing lines and gouges made by mint workers finishing the dies. These lines are commonly in the protected areas of the coin, which is where dirt and crud accumulates.</p><p><br /></p><p>Thus, removing dirt and crud is vital in attributing the coin, and in appreciating the novelty of any given variety.</p><p><br /></p><p>In Grellman&#039;s book &quot;<i>US Cents 1840 - 1857</i>&quot;, he describes the process for safely and ethically removing the crud. Step 7 states :</p><blockquote><p>&quot;<b>Add a very thin coat of Care, Blue Ribbon, or some similar protectant</b>.&quot;</p><p><br /></p></blockquote><p>I have received similar advice from the very top names in Early American Copper.</p><p><br /></p><p>This is not done to deceive any more than a museum conserving and preserving coins is deceptive. <i>In this case</i>, it is a vital and necessary process.</p><p><br /></p><p>I suppose there are some who use these oils to deceive.[/QUOTE]</p><p><br /></p>

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