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<p>[QUOTE=&quot;Marshall, post: 7603784, member: 21705&quot;]I&#039;ve heard the term internal cud to describe a piece of the die which breaks out of the die, but not at the rim. It appears to me that a CUD describes any chunk of the die which has fallen away from the die surface. It usually progresses from a break which usually begins at the rim.</p><p><br /></p><p>Notice this piece (S-166) has a spectacular break from the rim above E(D) to the rim right of the fraction. But an internal CUD develops on the right side of the E because a chunk of the die has failed. While this isn&#039;t typical, it happens.</p><p>[ATTACH=full]1309191[/ATTACH]A</p><p><br /></p><p>S-161 has 12 different die stages.states from perfect to a crack to incomplete filling to a full CUD at different places on the coin.</p><p><br /></p><p>This is an intermediate Die State with a full CUD from just right of A over TE to just short of S. There is a developing CUD from over T above A.</p><p>&nbsp;<img src="https://dyn1.heritagestatic.com/lf?set=path%5B1%2F1%2F2%2F1%2F6%2F11216580%5D%2Csizedata%5B850x600%5D&amp;call=url%5Bfile%3Aproduct.chain%5D" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p>Here is Die State XII which I recently acquired with a FULL CUD all the way back to the first T and a new, undescribed CUD developing over OF.</p><p>[ATTACH=full]1309199[/ATTACH]</p><p><br /></p><p>Is it a new Die State or just a late XII? Noyes and Breen are not exactly on the same page with their die stages. Uneven wear on this die caused by buckling is accounted for a bit differently by each. This buckling is more obvious on middle grade specimens than high grade specimens which might explain their differences.</p><p><br /></p><p>OK. I&#039;m showing off, but this is a good example of the progression of die failure to CUD.</p><p><br /></p><p>ps Since this is educational, what appears to be a CUD over ME is actually from an edge ding which does a good job imitating a true CUD.[/QUOTE]</p><p><br /></p>

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