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<p>[QUOTE=&quot;coppercoins, post: 566578, member: 152&quot;]<b>Justafarmer</b> - Add to your list the &#039;plumb&#039; of the mintmark punch to the die.&nbsp; Not only do many mintmarks sit slightly rotated CW or CCW, but they can also sit slightly tilted top heavy, bottom heavy, or to either side.&nbsp; Then you would have a #5 to look for.</p><p><br /></p><p>With precise laser imagery and a lot of programming, this would definitely be possible.&nbsp; Likely not worth the time and expense, but possible nonetheless.</p><p><br /></p><p><b>Desertgem</b> - Your first point is a bit confusing to me.&nbsp; If we are talking about mintmark positioning on two different dies being too close to one another in position to detect them as different dies, we then go to the markers.&nbsp; of course every different stage of every different die would have to be plugged into this system, but it is actually rather easy to take two different coins from two seemingly identical dies and point out that they could not have been struck by the same die with markers.&nbsp; Just because one marker doesn&#039;t match another, we don&#039;t just call it a different stage.&nbsp; Markers tell a story of a die&#039;s life.&nbsp; If chapter 4 on one coin is a completely different story than chapter 3 on a different coin, they are different books...simple as that.</p><p><br /></p><p>On your second point...yes a die worker can punch mintmarks pretty close in-line with one another...but not nearly close enough that precise laser readers couldn&#039;t see the difference.&nbsp; VERY unlikely.&nbsp; And even if it was undetectable, any scratch, gouge, crack, or other marker the laser sees would tell for sure which die is which.</p><p><br /></p><p>On your third point...you&#039;re right.&nbsp; That&#039;s why every different stage and die state of every die would have to be a part of this system before it could work.&nbsp; The machine would also have to be able to detect wear and account for the wear when working through detecting to which die the coin belongs.[/QUOTE]</p><p><br /></p>

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