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<p>[QUOTE=&quot;GDJMSP, post: 67280, member: 112&quot;]Howdy justafarmer - Welcome to the Forum !!</p><p><br /></p><p>An intersting idea - one that&#039;s been in use for many, many years - but it&#039;s not done by a computer. But I suppose it could be. </p><p><br /></p><p>You&#039;d have to program in allowances though, seldom is a coin struck exactly centered between the dies and not all planchets are exactly the same size. And each fraction of a millimeter in difference would matter with a program such as you describe. </p><p><br /></p><p>I think the reason nobody has done this is because it is easier to just learn the die diagnostics and recognize the coins by looking at them. Many older coins are collected by die pair.[/QUOTE]</p><p><br /></p>

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