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<p>[QUOTE="Oldhoopster, post: 4004541, member: 84179"]When the die was made, the working hub was shifted slightly causing doubling on the working die. This didn't happen very often and that's why certain true doubled dies are desirable.</p><p><br /></p><p>MD occurs when the die shifts in the fixture while the planchet is struck. This is a set up problem with the equipment, not a die problem. This happens a lot more often and that's why MD is considered a worthless error.</p><p><br /></p><p>Read about it on <a href="http://www.doubleddie.com" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.doubleddie.com" rel="nofollow">www.doubleddie.com</a> under the worthless doubling tab[/QUOTE]</p><p><br /></p>
[QUOTE="Oldhoopster, post: 4004541, member: 84179"]When the die was made, the working hub was shifted slightly causing doubling on the working die. This didn't happen very often and that's why certain true doubled dies are desirable. MD occurs when the die shifts in the fixture while the planchet is struck. This is a set up problem with the equipment, not a die problem. This happens a lot more often and that's why MD is considered a worthless error. Read about it on [URL="http://www.doubleddie.com"]www.doubleddie.com[/URL] under the worthless doubling tab[/QUOTE]
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