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<p>[QUOTE="Andrew McCabe, post: 3255205, member: 90666"]clearly readable clash die examples are even rarer than brockages. I suspect many more die clashes occurred without any damage. I've described a couple die clashes from my collection in sale descriptions and have others too. Clashed dies result in permanent changes to the die so you get later die matches. Brockages are one off occurrences. I tend therefore to regard clashed dies as more significant as their effects are similar to die breaks. Both cause incuse and reversed effects. In the case of the clash, a negative strikes a negative die and produces a positive in a flat field area of one or both dies which in turn produces a negative on all subsequent coins but of the OPPOSITE face design if the coin. In the case of a brockage, first a positive is produced, that sticks in (usually the upper) die and that produces a negative of the SAME face design of the coin.[/QUOTE]</p><p><br /></p>
[QUOTE="Andrew McCabe, post: 3255205, member: 90666"]clearly readable clash die examples are even rarer than brockages. I suspect many more die clashes occurred without any damage. I've described a couple die clashes from my collection in sale descriptions and have others too. Clashed dies result in permanent changes to the die so you get later die matches. Brockages are one off occurrences. I tend therefore to regard clashed dies as more significant as their effects are similar to die breaks. Both cause incuse and reversed effects. In the case of the clash, a negative strikes a negative die and produces a positive in a flat field area of one or both dies which in turn produces a negative on all subsequent coins but of the OPPOSITE face design if the coin. In the case of a brockage, first a positive is produced, that sticks in (usually the upper) die and that produces a negative of the SAME face design of the coin.[/QUOTE]
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