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i have a question about graded errors.
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<p>[QUOTE="ToughCOINS, post: 2870725, member: 20480"]No doubt about the pristine coin in some series being unusual, but my observation is that none of the big three shy away from classifying major die breaks, cuds, misaligned dies or rotated dies as errors. Minor ones, yes, but I think the same could be said about them shying away from attributing minor varieties, could it not?</p><p><br /></p><p><br /></p><p><br /></p><p><br /></p><p>Actually, I view it differently. A die crack typically starts at a stress concentration, progresses imperceptibly with each strike over many strikes until so little cross section of the die remains that crack propagation eventually accelerates and finally breaks the die. The die crack in that case is not an abrupt failure . . . . it's sort of like watching grass grow . . . only the terminal die break is an abrupt event.[/QUOTE]</p><p><br /></p>
[QUOTE="ToughCOINS, post: 2870725, member: 20480"]No doubt about the pristine coin in some series being unusual, but my observation is that none of the big three shy away from classifying major die breaks, cuds, misaligned dies or rotated dies as errors. Minor ones, yes, but I think the same could be said about them shying away from attributing minor varieties, could it not? Actually, I view it differently. A die crack typically starts at a stress concentration, progresses imperceptibly with each strike over many strikes until so little cross section of the die remains that crack propagation eventually accelerates and finally breaks the die. The die crack in that case is not an abrupt failure . . . . it's sort of like watching grass grow . . . only the terminal die break is an abrupt event.[/QUOTE]
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i have a question about graded errors.
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