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<p>[QUOTE=&quot;SorenCoins, post: 25488240, member: 73708&quot;]I&#039;d respectfully disagree. The requirement that true doubling be of the same height and strength is a widespread misconception and overgeneralization. There are many classes of doubled dies each of which has its own cause and appearance. What you said is true of many doubled dies but not all.</p><p><br /></p><p>Take, for instance, this doubled die I discovered on a 2019-P nickel. The separation is clear, and it is obviously not a die deterioration issue:</p><p><img src="https://www2.briansvarietycoins.com/system/listing_photos/12063/large/DSCN2943.JPG" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p>(Images from <a href="https://www2.briansvarietycoins.com/listings/view/1887" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www2.briansvarietycoins.com/listings/view/1887" rel="nofollow">https://www2.briansvarietycoins.com/listings/view/1887</a>)</p><p><br /></p><p>The doubling is not the same height, it is in much lower relief.</p><p><br /></p><p><br /></p><p>The doubling is not an effect of striking, but rather of doubling occurring in the hubbing process. Variations from what you are discussing can be accounted for by tilting, expansions or contractions of the die or hub, and many other variables in the hubbing process that can affect the appearance of a doubled die.[/QUOTE]</p><p><br /></p>

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