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<p>[QUOTE=&quot;dcarr, post: 2841052, member: 4781&quot;]Neat thread. I like seeing the various innovations in minting.</p><p><br /></p><p>I consider this to be my most &quot;technologically advanced&quot; issue:</p><p><img src="http://www.dc-coin.com/images/products/detail/eclipse_2017_Ag.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /> </p><p>I believe it to be the most accurate rendition of North America to ever appear on a coin or medal. This is because I used Digital Elevation Model (DEM) data from the US Geological Survey for the topography and applied it to a mathematical Orthographic map projection. Then I plotted the exact totality path (longitude &amp; latitude points) on that projection. All of that was done on the computer using a software program that I wrote. It was then &quot;reduced&quot; in size and the die was cut using a computer-controlled milling/engraving machine.[/QUOTE]</p><p><br /></p>

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