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<p>[QUOTE=&quot;Marshall, post: 838303, member: 21705&quot;]At this point, this is the descending scale of non standard coining from what I can gather.</p><p><br /></p><p>1. Reingraving/Repunched Detail - This is not technically a doubling, but produced many of the early mint products where dies were individually made or reworked.</p><p><br /></p><p>2. Hub making error - Similar to the above, but mistake made while making the Hub, rather than the Die. </p><p><br /></p><p>3. Reworked Hub - Again, not doubling per say, but produced some cross mintmark coins as hub dies were retooled for different mints.</p><p><br /></p><p>4. Double Hubbing - This is what most consider the Doubled Die and is caused by misalignment of the hub used to make the Dies during a multiple press die-making process used before the mid 90&#039;s.</p><p><br /></p><p>5. Mechanical Doubling - Strike Doubling during a single Strike - ie Bounce</p><p><br /></p><p>6. Double Striking - A planchet which has been struck more than once.</p><p><br /></p><p>7. Zinc Spread? Doubling</p><p><br /></p><p>8. Holder Doubling - Not really doubling, but appears to be because of the reflective properties of the holder, especially during photography.</p><p><br /></p><p>Is this a good synopsis? I know it&#039;s not nearly complete.</p><p><br /></p><p>How&#039;s this revision?[/QUOTE]</p><p><br /></p>

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