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<p>[QUOTE=&quot;Insider, post: 2297429, member: 24314&quot;]Dear Doug,&nbsp; I am 100% in agreement with you except for one statement below.&nbsp; ALL COINS have luster.&nbsp; It has nothing to do with the dies.&nbsp; I can hit a planchet with a hammer and it still has luster - just not the same as the surface of the planchet I missed with the hammer.&nbsp; Is that what the PCGS seminar concluded to prove you are correct?</p><p><br /></p><p>Die erosion is what causes the raised lines on coins that reflect light in a cartwheel pattern.&nbsp; We are saying the same thing.&nbsp; As you said, as the dies become worn the luster changes. ALL struck coins have luster.&nbsp; Proofs have a nice mirror-like luster (I prefer frosty white mint luster).</p><p><br /></p><p>My disagreement is this: Everyone, and I mean everyone...Mint engravers, mint press operators, mint floor foremen, well-known numismatic authorities on the minting process will tell you that the cartwheel effect we all like to see on our coins is caused by die erosion.&nbsp; The die wear does not create the luster (it is already on the metal planchet) it enhances and changes the luster. </p><p><br /></p><p>Don&#039;t you agree?[/QUOTE]</p><p><br /></p>

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