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<p>[QUOTE=&quot;john65999, post: 8056640, member: 111931&quot;]Ken Potter, of CONECA, has stated that he had a conversation with a Philadelphia Mint spokesmen about the occurrence of these coins (K. Potter <a href="http://hermes.csd.net/~coneca/" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://hermes.csd.net/~coneca/" rel="nofollow">CONECA</a> website),”…[the Mint Spokesman] suspected that they probably had not polished the die blanks sufficiently to remove all the lathe lines.&nbsp; The lines were created when the die blank was machined from a cylinder of steel according to him and we can presume that if this is accurate, that the hubbing process did not eliminate them completely.” </p><p><br /></p><p><a href="https://4.bp.blogspot.com/-6C_5jtS_JR4/XHQF3bpqTsI/AAAAAAAAaKA/Y6rpfu02PP80N74Wh2ZNrwwktDrob1ILQCLcBGAs/s1600/2000-D%2BJefferson%2BNickel%2BMint%2BError%2BDouble%2BStruck%2B-1%2B-ccfopt.jpg" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://4.bp.blogspot.com/-6C_5jtS_JR4/XHQF3bpqTsI/AAAAAAAAaKA/Y6rpfu02PP80N74Wh2ZNrwwktDrob1ILQCLcBGAs/s1600/2000-D%2BJefferson%2BNickel%2BMint%2BError%2BDouble%2BStruck%2B-1%2B-ccfopt.jpg" rel="nofollow"><img src="https://4.bp.blogspot.com/-6C_5jtS_JR4/XHQF3bpqTsI/AAAAAAAAaKA/Y6rpfu02PP80N74Wh2ZNrwwktDrob1ILQCLcBGAs/s200/2000-D%2BJefferson%2BNickel%2BMint%2BError%2BDouble%2BStruck%2B-1%2B-ccfopt.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></a></p><p>Double Headed 2000-D REV</p><p>To clarify, dies are made from steel rods called Blanks, in the process of preparation the rods they are lathed into a conical shape of approximately 22°. Apparently, after reaching the desired shape, they are furthered polished to remove evidence of their formation. As hypothesized, the lines were inadequately removed from a number of different dies. After being hubbed, some of the lines remained. To the left is a drawing of a die-blank. </p><p><br /></p><p>As there was no specific documentation of dies for coinage with Lathe Lines available, it was suggested that they be documented. Having acquired or borrowing several others from various collectors, a number of dies have thus been identified labeled with the Date, MM, denomination and listing number (e.g., 1996D #C LL 00#); if it ends with an &quot;R&quot;, it is a reverse die; they are numbered 001 and onward by year as identified.[/QUOTE]</p><p><br /></p>

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