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<p>[QUOTE=&quot;mikediamond, post: 3511284, member: 1859&quot;]Your nickel has a cud (corner die break) on the obverse.&nbsp; It&#039;s not clear to me why the edge might have been vulnerable to damage here, as the presence of the cud should cause less radial expansion during the strike and therefore no bulge.&nbsp; It&#039;s possible that the cud was knocked off when a temporarily misaligned hammer (obverse) die collided with the top of the collar, an event that also damaged the working face of the collar.&nbsp; This ordinarily shouldn&#039;t happen, as the collar is much harder than the dies.&nbsp; Perhaps the die was abnormally hard, which might account for its brittle response to the collision.&nbsp; Or perhaps some fine debris from the site of the break lodged between the die neck and the collar, scouring the latter with fine striations.&nbsp; This might be worth a write-up in Coin World, as we might be looking at the first case of &quot;reverse collar clash&quot;.[/QUOTE]</p><p><br /></p>

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