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<p>[QUOTE=&quot;yakpoo, post: 689703, member: 18157&quot;]Here&#039;s a picture of what the Puerto Rico Proof Reverse &quot;should&quot; look like...</p><p>&nbsp;</p><p><img src="http://i664.photobucket.com/albums/vv10/Yakpoo/test/state-quarter-puerto-rico-proof-Rev.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p>&nbsp;</p><p>This week&#039;s (September 14, 2009) copy of Coin World has a front page article about the Mint&#039;s use of lasers to produce the frosted cameo devices on some proof coins. </p><p>&nbsp;</p><p>The introduction of this technique began in 2003 for some medals...and in 2004 for the reverses of some proof coins. </p><p>&nbsp;</p><p>The article says that high magnification is required to see the differences between coins made from the manually sandblasted/polished die and the automatic polish/laser frosted die.</p><p>&nbsp;</p><p>Coin World says...</p><p>&nbsp;</p><p><br /></p><p>&nbsp;</p><p>I don&#039;t know from this article if the laser process was used on the Puerto Rico proof silver quarter or not. In any event, if you don&#039;t like your proof set and don&#039;t want to hassle with the Mint, I wouldn&#039;t mind taking it off your hands. PM me and let me know. :high5:[/QUOTE]</p><p><br /></p>

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