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<p>[QUOTE=&quot;yakpoo, post: 5394693, member: 18157&quot;]The flat, shelf-like doubling is characteristic of Mechanical (or Machine) Doubling (MD). Unfotunately, these coins don&#039;t sell for a premium...(nice pics, btw. 2018?)</p><p><br /></p><ul> <li>Machine-doubled coins originate in the striking press. While doubled dies are caused by doubling of the design on the die itself, machine doubling is often caused by an aging die reverberating or shifting during the strike — hitting the coin twice. This is most typically an issue with aging, deteriorating dies or those that aren’t properly adjusted in the presses.</li> </ul><p><br /></p><p><a href="https://coins.thefuntimesguide.com/machine-doubling-doubled-dies/#:~:text=While%20doubled%20dies%20are%20caused,properly%20adjusted%20in%20the%20presses" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://coins.thefuntimesguide.com/machine-doubling-doubled-dies/#:~:text=While%20doubled%20dies%20are%20caused,properly%20adjusted%20in%20the%20presses" rel="nofollow">https://coins.thefuntimesguide.com/machine-doubling-doubled-dies/#:~:text=While doubled dies are caused,properly adjusted in the presses</a>.</p><p><br /></p><p>[MEDIA=youtube]S3tRIIo4X7A[/MEDIA][/QUOTE]</p><p><br /></p>

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