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<p>[QUOTE=&quot;medoraman, post: 4848793, member: 26302&quot;]I used to be the controller of a tier two auto manufacturer. We ran modern metal stamping machines, ( kind of like the mint). In the plant, there were various kinds of defects that could occur, from screw machine maladjustment, braising oven temperature variations, die defects, metal malleability defects, etc. All of these defects were reported as the overall error rate, and each overall error rate had subsidiary error rates to pinpoint the major driver of the errors.</p><p><br /></p><p>Point being, ALL MANUFACTURING uses error rates to measure levels of defective manufacturing. To me, any modern coin that is not exactly as planned is an error. This includes offstruck coins, wrong planchet, cuts, machine doubling, doubled dies, etc. If the mint has procedures to eliminate variation, then any variation is an error, because it was not as planned. Early US coins did not have such procedures, so they produced varieties on purpose. No QA manager would look at a 55 DDO&nbsp; and call it anything other than a manufacturing error.</p><p><br /></p><p>99.9% of the world uses the term this way, so being self righteous about it kind of comes off as elitist and exclusionary.[/QUOTE]</p><p><br /></p>

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