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<p>[QUOTE=&quot;ddddd, post: 5304543, member: 22377&quot;]As far as proofs, Heritage has this tidbit:</p><p>&quot;Only 103 proof Isabella quarters were struck. These special strikings consisted of the first hundred strikes from the die, and were eventually followed by the 400th, 1492nd, and 1892nd coins struck. There are no published or known diagnostics for proofs, they simply &quot;carry their own credentials&quot; as Walter Breen used to say.&quot;</p><p><br /></p><p>From what I have read, the grading companies no longer certify any more proof Isabella quarters. And even the first 103 are dubious (more likely to be nice prooflikes as opposed to true proofs).</p><p><br /></p><p>See this thread for more:</p><p><a href="https://forums.collectors.com/discussion/974673/diagnostics-for-1893-isabella-quarter-proof-vs-mint-state" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://forums.collectors.com/discussion/974673/diagnostics-for-1893-isabella-quarter-proof-vs-mint-state" rel="nofollow">https://forums.collectors.com/discussion/974673/diagnostics-for-1893-isabella-quarter-proof-vs-mint-state</a>[/QUOTE]</p><p><br /></p>

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