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<p>[QUOTE=&quot;fjrosetti, post: 31203, member: 785&quot;]I remember back in 1965 when the first clad coins were introduced, one of the major concerns was that eventually, as the top layers wore down, the pure copper core would show up and cause undesirable situations to develop such as rapid oxidation, etc.</p><p><br /></p><p>Now, nearly 40 years later I have yet to see even one clad coin that has worn through to its copper core.&nbsp; I do understand how hard the nickel/copper mix on the outside layers are and that it does hold up for a very long time, but IMO I feel that we will be seeing the copper core on many clad coins soon.</p><p><br /></p><p>Wonder what others think.[/QUOTE]</p><p><br /></p>

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