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<p>[QUOTE=&quot;Ben Dymhover, post: 26067395, member: 169804&quot;]I have a copy of a letter from Jerry Yellin, Chief-Assay Division, Department of the Treasury, Bureau of the Mint, dated June 27, 1985. Which states;</p><p><br /></p><p>“This is in response to your letter dated June 17, 1985 in which you enclosed three 1985 Denver one cent coins.</p><p><br /></p><p>The difference in color is due to the amount of zinc in the copper plate. In a proper plated cent there would be no zinc in the outer layer. However it is not a rarity to find zinc present.</p><p><br /></p><p>In the plating process it is not uncommon for several zinc blanks to be retained in the plating tanks. After a period of time the blanks begin dissolving and contaminate the plating solution. This a brass plate rather than a copper plate is formed on the subsequent blanks to be plated.”</p><p><br /></p><p>I hope this helps resolve the dilemma.[/QUOTE]</p><p><br /></p>

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