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<p>[QUOTE=&quot;zapdbf, post: 186603, member: 5902&quot;]<span style="color: black"><span style="color: black">I see what you are saying, it may be better illustrated as teeth in a gear, at a specific diameter the gear will line up perfectly, change the diameter and keep the tooth width the same and they will not mesh up(unless you reduce the diameter to one whole tooth width). And both top and bottom dies may not be perfectly milled to comply to the same exact diameter. so two specific diameters of coins will produce single overlaps. One for the upper die and the other for the bottom die. Two dies perfectly matched at a specific diameter will produce no overlap. </span></span></p><p><span style="color: black"><span style="color: black"><span style="color: black">Both dies would have to be exact to prevent any overlap, and given the period that this was produced it probably was a rare thing.</span></span></span></p><p><span style="color: black"><span style="color: black"><br /></span></span></p><p><span style="color: black">They probably tried to make the dies for a specific diameter and as it was back then the tolerances were too great to get a perfect fit.</span>[/QUOTE]</p><p><br /></p>

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