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<p>[QUOTE=&quot;Deedlebomber1963, post: 3254168, member: 99758&quot;]I am also very new at all this but it sounds kinda like something I found - </p><p><b>PART IV. Die Errors:&nbsp; Clashed Die or Die Clash</b></p><p><br /></p><p><b>Definition: </b>This mishap occurs when opposing dies collide with each other when a <a href="http://www.error-ref.com/blank-or-planchet/" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.error-ref.com/blank-or-planchet/" rel="nofollow">planchet</a>fails to be fed into the striking chamber.&nbsp; Most complete planchet misfeeds don’t result in clashed dies because dies normally don’t touch each other in the absence of a planchet. The dies operate with a safety margin that can be referred to as minimum die clearance or minimum die distance.&nbsp; These terms refer to the closest approach the dies make to each other in the absence of a planchet. In order for dies to clash, the dies must have fallen out of adjustment so that their minimum clearance is zero (or less than zero).</p><p><br /></p><p>For more information on clashed dies, visit this site: click<a href="http://www.maddieclashes.com/" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.maddieclashes.com/" rel="nofollow">HERE.</a></p><p><br /></p><p><img src="https://www.cointalk.com/file:///C:/Users/dschmitt/AppData/Local/Temp/msohtmlclip1/01/clip_image002.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /><img src="https://www.cointalk.com/file:///C:/Users/dschmitt/AppData/Local/Temp/msohtmlclip1/01/clip_image004.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><b>Part IV. Die Errors: Die Clash: Clash Marks</b></p><p><br /></p><p><b>Definition:</b> Clash marks are the impressions left on each die after a <a href="http://www.error-ref.com/die_clash/" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.error-ref.com/die_clash/" rel="nofollow">die clash</a>.&nbsp; Part of the design of each die is transferred to the opposing die when they hit into each other.&nbsp; The transferred design elements are raised and normally-oriented on the die face.&nbsp; Therefore, any coin that is struck will show extra design elements that are incuse (sunken) and mirror-image.&nbsp; The field area of the die is most likely to pick up clash marks because this part of die face is farthest in front.&nbsp; Shallow recesses on the die face (corresponding to low-relief areas on the coin) can also pick up clash marks.&nbsp; Deep recesses are generally protected from even the strongest clashes.&nbsp; The periphery of each die face will normally be free of clash marks in most instances due to die convexity. Each die face bulges out ever-so-slightly, and the convexity is strongest at the periphery.&nbsp; Since opposing surfaces are curving away from each other, there is little opportunity for contact.</p><p><br /></p><p>Below is a 1987 Lincoln cent with clash marks from the reverse (sometimes called a “prisoner cent”) and a 1979 Jefferson nickel with clash marks from the obverse.</p><p><br /></p><p><img src="http://file:///C:/Users/dschmitt/AppData/Local/Temp/msohtmlclip1/01/clip_image006.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /> <img src="http://file:///C:/Users/dschmitt/AppData/Local/Temp/msohtmlclip1/01/clip_image008.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /> </p><p><br /></p><p><br /></p><p><b>PART IV. Die Errors:&nbsp; Die Clash:</b></p><p><br /></p><p><b>Chatter Clash (multiple staggered clash marks)</b></p><p><br /></p><p><b>Definition: </b>A chatter clash is defined by the presence of multiple sets of closely-spaced clash marks. They are generated when a pair of dies collides multiple times, with slight lateral movement of the hammer die between each strike.&nbsp; Multiple sets of very light clash marks can also be produced by die bounce.&nbsp; A loose, jittery die can collide with its counterpart and vibrate during the impact, producing two or more sets of clash marks.</p><p><br /></p><p><img src="https://www.cointalk.com/file:///C:/Users/dschmitt/AppData/Local/Temp/msohtmlclip1/01/clip_image010.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /><img src="https://www.cointalk.com/file:///C:/Users/dschmitt/AppData/Local/Temp/msohtmlclip1/01/clip_image012.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><br /></p><p><img src="https://www.cointalk.com/file:///C:/Users/dschmitt/AppData/Local/Temp/msohtmlclip1/01/clip_image014.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /><img src="https://www.cointalk.com/file:///C:/Users/dschmitt/AppData/Local/Temp/msohtmlclip1/01/clip_image016.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>A very strong chatter clash is seen on this 2000-P Jefferson nickel. It has an estimated five sets of clash marks.</p><p><br /></p><p>This 1998 cent was struck by a hammer die that was horizontally misaligned toward the northwest.&nbsp; Both faces show at least five sets of overlapping clash marks.&nbsp; Evidently, the obverse (hammer) die shifted slightly toward the northwest after each clash.&nbsp; We have encountered at three other cents struck by this same die pair that show an identical level of misalignment.&nbsp; It seems that the hammer die stabilized in this position for a number of strikes.</p><p><br /></p><p><br /></p><p>Top of Form[/QUOTE]</p><p><br /></p>

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