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<p>[QUOTE=&quot;dcarr, post: 319403, member: 4781&quot;]What they are doing is perfectly legal.</p><p>I suspect that what they do is the following:</p><p><br /></p><p>1) Polish the whole coin.</p><p>2) Create a &quot;mask&quot; with tape, stuck to the coin, which covers the devices but not the fields.</p><p>3) Sandblast the coin.</p><p>4) Remove the tape.</p><p><br /></p><p>The tape prevents the devices from picking up a matte finish during sandblasting.[/QUOTE]</p><p><br /></p>

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