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<p>[QUOTE=&quot;Colonialjohn, post: 2220280, member: 57741&quot;]Just a thought Conder 1 ... when doing some work for Mike Diamond in a CW error article I was thinking about wartime Jefferson nickels and why they have such a high rate of lamination errors. In my opinion it could be an UNSTABLE ALLOY and these nickels from memory having magnesium in the alloy. I am convinced impropr alloy mixes such as these emergency alloy types put to use during WWIIcoupled withe fact that theiri long term stability to the environment could not be properly studied for obvious reasons. My point - not all laminations are caused by contamination. An intensive SEM/EDS study would prove IMO that Mg is the culprit. Just a thought ...</p><p><br /></p><p>John Lorenzo</p><p>Numismatist</p><p>United States[/QUOTE]</p><p><br /></p>

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