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<p>[QUOTE=&quot;mlov43, post: 3971569, member: 16729&quot;]I am just wondering how <b>frosting</b> was applied to proof dies prior to the current laser application process.</p><p><br /></p><p>I learned about the pickling (acid) method, that&#039;s the &quot;wet etching&quot; method.&nbsp; That&#039;s not what I&#039;m wondering about.</p><p><br /></p><p>I&#039;m wondering about the <b>&quot;dry etching&quot; method</b>.&nbsp; Was this a process of applying frosting to proof dies at the U.S. or other nations Mints?&nbsp;&nbsp; How was that handled?&nbsp; </p><p><br /></p><p>Also, what about the fields of the die?&nbsp; How did the fields not receive the etching from frosting?&nbsp; Did they cover the areas they didn&#039;t want frosted with something (taping?)</p><p><br /></p><p>Below:&nbsp; Coins (not dies) made with proof dies.</p><p><br /></p><p>[ATTACH=full]1045075[/ATTACH][/QUOTE]</p><p><br /></p>

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