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<p>[QUOTE=&quot;Kevin Mader, post: 8252258, member: 106826&quot;]As noted by our fellow enthusiasts, DDD.&nbsp; Profiles and devices are affected with this eventual deterioration of the die.&nbsp; Irregular and uneven surfaces cause for the material to flow unevenly and in weird patterns.&nbsp; You see this largely on nickels and clad coins.&nbsp; If it looks like the device is oozing out from itself...DDD.</p><p><br /></p><p>Mechanical Doubling is the wobble and play in the tools/equipment.&nbsp; When there&#039;s play, the point at where it occurs determines the degree of damage to the coin.&nbsp; Usually, it affects the devices at Top Dead Center at the end of the stroke, creating the effects where the die is deepest (think inverted).&nbsp; The wobble smears the device creating the shelflike effect.&nbsp; Smaller, deeper devices appear to be the most affected in what I see from CRH events and outer devices where the moment is increased radially and the evidence is more pronounced.[/QUOTE]</p><p><br /></p>

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