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<p>[QUOTE=&quot;Insider, post: 2508054, member: 24314&quot;]You are free to call them anything you wish.&nbsp; Until I do some research on something that I never heard and never even crossed my mind until reading your opinion and consult with a few people, I&#039;ll just disagree.&nbsp; When I&#039;m through, you may change my opinion.</p><p><br /></p><p>Fletcher called the &quot;spikes&quot; die gouges.&nbsp; Unfortunately, an earlier reference (1980&#039;s?) on Liberty &amp; Shield Nickels that I consulted earlier today (can&#039;t remember exact name at the moment but Mrs. Peters was one of the authors) states the marks are from die erosion.&nbsp; This is probably where that idea sprang up.</p><p><br /></p><p>Mint technicians we consulted in the 1970&#039;s said they resulted from tooling.&nbsp; I find it very hard to disagree with them; however, if you are correct, I still cannot explain how sharp, well defined, &quot;spikes&quot; are caused by die fatigue.&nbsp; Furthermore, all these &quot;spikes&quot; MUST GO in the direction of the radials to support their theory. </p><p><br /></p><p>So far, I have found similar marks on one proof shield nickel.&nbsp; I am looking for more proofs as these coins should be struck using &quot;fresh dies.&quot;&nbsp; Additionally, I know of no other coin type in any metal (except for shield nickels) that display this characteristic.&nbsp; I should think if were die deterioration it would be VERY COMMON (at least on all nickel coins) and not confined to just a few dates in one coin type.&nbsp; Furthermore, die deterioration is a progressive effect.&nbsp; I don&#039;t recall ever seeing one of these coins that did not have those marks on those particular dies. </p><p><br /></p><p>In fairness to you, I will say that I never gave these &quot;spikes&quot; any detailed attention as I knew what they were and what caused them.&nbsp; I look forward to you educating me. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie50" alt=":happy:" unselectable="on" unselectable="on" /></p><p><br /></p><p>PS&nbsp; I have several of your articles in my diagnostic files.<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie8" alt=":D" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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