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<p>[QUOTE=&quot;-jeffB, post: 24663665, member: 27832&quot;]The mintage of 90% Eisenhower dollars <i>is</i> less than 10k -- it&#039;s <b>zero</b>.</p><p><br /></p><p>There were a few Denver-mint coins mistakenly struck on 40% planchets, and those are quite valuable. There was <a href="https://coinweek.com/mike-byers-mint-error-news-unique-proof-1971-s-eisenhower-dollar-overstruck-on-san-francisco-assay-office-medal/" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://coinweek.com/mike-byers-mint-error-news-unique-proof-1971-s-eisenhower-dollar-overstruck-on-san-francisco-assay-office-medal/" rel="nofollow">one 1971-S dollar overstruck onto a <i>bronze</i> medal</a>.</p><p><br /></p><p>I can imagine a <i>thick</i> planchet producing an overweight 1971-S 40% clad coin, but I just don&#039;t see any way to get a 90% example. Not unless it was deliberately overstruck on an old 90% silver dollar (see above), but in that case I&#039;d expect to see some of the underlying design (again, see above).</p><p><br /></p><p>I think your scale is off. But, as others have said, you can certainly submit it (with a note to check its composition). What&#039;s the going rate now for a single coin through a dealer with a composition check? $50-100?[/QUOTE]</p><p><br /></p>

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