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<p>[QUOTE=&quot;physics-fan3.14, post: 2054832, member: 19165&quot;]No. </p><p><br /></p><p>The modern era of prooflike coinage began in 1984 (nickels and halves begin in this year, all other denominations begin having PL coins by the end of the 1980s). All prooflike coinage struck in this era have similar characteristics, and are almost certainly caused by the same effect. Beginning in the mid-1980&#039;s, dies were chrome plated to prolong die life. This finish was highly polished, and the first several strikes from each die produced a prooflike effect. In this modern era, die polish is very rarely seen on prooflike coinage - and almost all of the coins are extremely early die states. These are the true first strike coins. </p><p><br /></p><p>Prooflike coinage has absolutely nothing to do with the planchet - as proven by the coin shown below. This dime is a 1995P (so, firmly within the modern era), but it was struck off-center. The struck portion shows medium prooflike reflectivity, while the unstruck portion is completely normal (with a matte diffuseness and the tickmarks and hashmarks you expect from an unstruck planchet). </p><p><br /></p><p>Also, the Denver mint prepared their own planchets. There would have been no transfer of unstruck planchets between the mints. </p><p><br /></p><p><img src="http://i277.photobucket.com/albums/kk68/physicsfan/prooflike/IMG_1318_zpsef941c0e.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><img src="http://i277.photobucket.com/albums/kk68/physicsfan/prooflike/IMG_1323_zps91664d05.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" />[/QUOTE]</p><p><br /></p>

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