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<p>[QUOTE=&quot;cladking, post: 26065443, member: 68&quot;]Some might find this interesting.</p><p><br /></p><p>In an original roll there used to be about a 55% chance that if a coin was oriented heads side up the next coin would be as well and vice versa.</p><p><br /></p><p>More to the point if you pull out a roll of BU zincolns and eight are rotted there is a very good chance they will be consecutive.&nbsp; </p><p><br /></p><p>I believe the first can be explained by a much lower coefficient of friction between a heads and a heads than a tails and a heads leading to orientations &#039;bunching up&quot; and the second can only be explained by contagious rot.&nbsp; Verdigris is different and does tend to be very slow and far less common than zinc rot.&nbsp; But I do see it on adjacent coins quite often especially when oriented heads to heads.&nbsp; Of course it could be the contaminant causing the verdigris to affect both coins rather than &quot;contagion&quot;.[/QUOTE]</p><p><br /></p>

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