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<p>[QUOTE=&quot;Insider, post: 2908320, member: 24314&quot;]raider34, posted: &quot;Whizzing is done to simulate mint luster. It&#039;s done with some type of high speed too (like a dremel). What happens is the tool puts numerous scratches in the coin (similar to flow lines) which simulates the luster. <span style="color: #ff0000">YES</span> <b>Usually</b>, whizzing is only done to the fields of the coin, <span style="color: #ff0000">NO</span> but can be done over the devices too. A good whiz job can be hard to detect, <span style="color: #ff0000">NO! Once you learn what it looks like it can be detected from a foot away. </span>and can fool a lot of people. <span style="color: #ff0000">Who are uninformed</span>.&nbsp; The &quot;giveaway&quot; for a whized coin would be a build up of metal <span style="color: #ff0000">on the edge of</span> around the raised areas of the coin (this would be where the whizzing stopped).&quot;</p><p><br /></p><p>Numismat, posted: &quot;In addition to what raider said, a really good whiz job requires high magnification to identify. <span style="color: #ff0000">Absolutely not!</span> A 5x or 10x loupe may not be enough, but even a fairly cheap microscope has enough magnification to see the difference. In this case the difference is very fine incuse marks in consistent , usually circular, direction (on the whizzed coins). A coin which genuine cartwheeling luster, or &quot;bloom&quot; may have die polish lines that can sometimes be confused for whizzing. <span style="color: #ff0000">No, never.</span>&nbsp; <span style="color: #ff0000">Die polish and mechanical alterations (whizzing in this case) look nothing like each other.&nbsp; Unfortunately, some folks have a narrow definition of die polishing that can lead to confusion among those not as knowledgeable.</span> However, die polish lines <span style="color: #ff0000">may often be</span> <span style="color: #ff0000">straight</span> are nearly always straight and whizzing marks are <span style="color: #ff0000">never</span> <span style="color: #ff0000">straight</span> usually not.</p><p>On coins with original surfaces there may also be a halo effect, <span style="color: #ff0000">NO, the &quot;halo effect&quot; is exclusive to mechanical alteration or cleaning.</span> <span style="color: #ff0000">Toning rings, stains or color forming a halo around devices is not the same thing.</span> from metal flow that radiates from the center to the outside or vice versa. This will not be seen on whizzed coins.&quot; <span style="color: #ff0000">NO, whizzed coins often have a &quot;halo effect&quot;.</span></p><p><br /></p><p>Numismat, posted: &quot;Buildup of material around the finer features is a good sign of cleaning by rubbing <span style="color: #ff0000">NO, NO!</span> or whizzing <span style="color: #ff0000">YES</span>! in any case.&nbsp; Often this buildup is easier to see than marks on the surface or the luster itself. <span style="color: #ff0000">(?)</span> Photo doctoring has become very prevalent, but this is one sign that seems to be consistent.&quot; <span style="color: #ff0000"> A coin in hand is not photoshopped.</span></p><p><br /></p><p>cpm9ball, posted: &quot;The fine hairlines from whizzing don&#039;t necessarily have to be in a circular pattern. <span style="color: #ff0000">True but they curve.</span> A fine brush or buffing (wheel) attachment on a drill can produce hairlines that are parallel to one another. These can be distinguished from die polishing because they remove surface metal leaving incuse striations where die polishing lines would be raised on the coin. <span style="color: #ff0000">YES </span> The whizzing process will make a coin look <b><span style="color: #660033">shiny </span><span style="color: #ff0000">(SHINY IS THE LUSTER!<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie20" alt=":banghead:" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie20" alt=":banghead:" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie20" alt=":banghead:" unselectable="on" unselectable="on" />)</span></b>, but it destroys the <span style="color: #ff0000"><b>MINT </b></span>luster. </p><p><br /></p><p>Luster is created by the (surface) flow lines of the metal when the coin is struck and the metal moves outward toward the rim. Whizzing removes the flow lines. <span style="color: #ff0000">Perfect.</span></p><p><br /></p><p><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie26" alt=":bookworm:" unselectable="on" unselectable="on" /> Lehigh96, posted:&nbsp; &quot;Thought I would resurrect this thread after photographing a whizzed coin this afternoon.&nbsp; It is an XF/AU 1894-O Morgan Dollar that someone whizzed in an attempt to pass it off as uncirculated.&nbsp; They did not do a particularly good job and <b>even at a distance, the luster looks strange</b>.&nbsp; Here are some photos of the coin.&nbsp; Even from over a foot away, something just doesn&#039;t look right.&quot; <span style="color: #ff0000"> <b>AMEN</b></span>, <span style="color: #ff0000">read this again everybody. Thank you for the images.</span></p><p><span style="color: #ff0000"></span>[/QUOTE]</p><p><br /></p>

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