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<p>[QUOTE=&quot;desertgem, post: 1475373, member: 15199&quot;]In machine doubling, a common situation is that only one lug or side is a tiny bit loose and moves. The other areas that don&#039;t can act as a pivot at difference points, causing greatest movement on the areas furthest from the pivot. I have seen some MMD that does affect most of one face, but it is less common. I have read that it was a common shortcut&nbsp; to reduce the lugs mechanically so they could be changed more rapidly, as heat generated during&nbsp; use striking coins, could expand the die and make it hard to remove.[/QUOTE]</p><p><br /></p>

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