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<p>[QUOTE=&quot;Dan Burby, post: 2233439, member: 74273&quot;]From wexler&#039;s site:</p><p>&quot;On October 1, 2009 I had the privilege of having a telephone conversation with George Shue, Senior Advisor in Manufacturing at the U.S. Mint.&nbsp; During this conversation the 2009-D Washington D.C. quarter with a major doubled die reverse came up.&nbsp; Mr. Shue noted that the Mint was aware of this doubled die error and how it occurred.&nbsp; This particular doubled die resulted when a hubbing press operator stopped one of the single-squeeze hubbing presses to realign the hub and die and then restarted the hubbing sequence.&nbsp; In the process a rotational misalignment of images resulted.&nbsp; Mr. Shue further noted that the Mint was able to reproduce the error in a test to see what caused the doubled image originally.</p><p><br /></p><p>The conversation further revealed that the Mint was aware that even though it was contrary to policy, hubbing press operators were taking it upon themselves to sometimes stop the single-squeeze hubbing presses before the hubbing was completed to make adjustments, and then restarting the press to complete the hubbing.&nbsp; To prevent doubled dies like the major variety seen on the 2009-D Washington D.C. quarter from happening again, the Mint has installed “locks” on the hubbing presses.&nbsp; Now if a hubbing press operator stops the press before the hubbing is completed, they will be unable to restart the press until a supervisor comes to inspect everything to make sure that things are reset properly.&nbsp; The supervisor will then “unlock” the press so that the hubbing can be completed.&nbsp; So for now doubled dies continue to be produced despite Mint efforts to eliminate the die variety.&quot;</p><p>##</p><p>It would appear that the single-squeeze isn&#039;t always singular. The result of starting, stopping, and restarting a &quot;single&quot; squeeze is effectively the same as the multi-squeeze process. Although it shouldn&#039;t happen, workers are only human and don&#039;t always follow procedure; hence post-1996 doubled dies. (Lastly, the mint began testing the single-squeeze in 1985. I&#039;m looking into FOIA documents to determine if single squeeze coins were minted and released publicly between 85-96. Think Web Press banknotes 88-95.)[/QUOTE]</p><p><br /></p>

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