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<p>[QUOTE=&quot;Conder101, post: 542595, member: 66&quot;]No, once the die is hardened for use the only work that might be further done to it is polishing to remove clashmarks.&nbsp; The hardened steel can&#039;t be successfully re-cut or re-punched and the trouble to re-anneal, re-work, and then re-harden the die is more that of just creating a new die.&nbsp; Also a die reworked in that fashion tends to develop to many internal flaws and fails quickly.&nbsp; There are only two cases in US coinage where a die was used, reworked, and then used again.&nbsp; Those are the 1806/5 half dime and quarter.&nbsp; And the only reason they did it then was because of a shortage of die steel.</p><p><br /></p><p>&nbsp;</p><p>Yes, but usually only the undated dies.&nbsp; If they were still in good condition at the end of the year they would often continue to be used the following year.&nbsp; For the dated dies see comments below.</p><p><br /></p><p><br /></p><p>Yes&nbsp; but it still happens.&nbsp; It tends not to be noticed though because there isn&#039;t much research done to identify specific reverse dies these days since there are so many of them and they are so similar.&nbsp; About the only time it is noticed is if there is a change in the hub design for a new years coinage as occurred with the 2008 W silver eagle with the reverse hub of 2007.&nbsp; Even there though we don&#039;t know if any of the 2007 dies used on the 2008 coins were also used on the 2007 coins.&nbsp; But one or two of them might have been.</p><p><br /></p><p>Hobo mentioned the 1817/3 half dollar and and the other early overdates, but none of those were reused dies. In every case the die was ONLY used in the overdated fashion.&nbsp; Other then the 1806/5 dies I mentioned no overdated die was used for production in the non-overdated state.&nbsp; They were all non-hardened dies leftover at the end of the year that were then re-dated.&nbsp; Hardened dated dies leftover at the end of the year were simply used as is or discarded.[/QUOTE]</p><p><br /></p>

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