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<p>[QUOTE="Hookman, post: 3408659, member: 99642"]I'm not an expert but from what I've learned on this site, what you have there has several common names : Mechanical Doubling, usually caused by malfunctioning equipment; Strike doubling, usually caused by an extra strike or movement of either the striking die or the planchet; or Die Deterioration Doubling, caused by the die wearing out and spreading out the metal when the planchet is struck. However, they all have one name in common : Worthless Doubling.</p><p>These types of doubling are so common that they carry no premium or increased value whatsoever.</p><p>However, for new collectors, they're fun to look at and share with your friends in something we call Show and Tell.</p><p>Show your friends and tell them about it, and you can impress them all with your new found numismatic knowledge.</p><p><br /></p><p>For serious research into this phenomenon, check this site. There are also other sites that are good. On this one choose the topic "Worthless Doubling" from the list on the upper left.</p><p><a href="http://doubleddie.com/58222.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://doubleddie.com/58222.html" rel="nofollow">Wexler's Coins and Die Varieties</a>[/QUOTE]</p><p><br /></p>
[QUOTE="Hookman, post: 3408659, member: 99642"]I'm not an expert but from what I've learned on this site, what you have there has several common names : Mechanical Doubling, usually caused by malfunctioning equipment; Strike doubling, usually caused by an extra strike or movement of either the striking die or the planchet; or Die Deterioration Doubling, caused by the die wearing out and spreading out the metal when the planchet is struck. However, they all have one name in common : Worthless Doubling. These types of doubling are so common that they carry no premium or increased value whatsoever. However, for new collectors, they're fun to look at and share with your friends in something we call Show and Tell. Show your friends and tell them about it, and you can impress them all with your new found numismatic knowledge. For serious research into this phenomenon, check this site. There are also other sites that are good. On this one choose the topic "Worthless Doubling" from the list on the upper left. [URL='http://doubleddie.com/58222.html']Wexler's Coins and Die Varieties[/URL][/QUOTE]
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