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<p>[QUOTE="Hommer, post: 2910954, member: 73266"]Actually, the collar fits around the die and moves back and forth on the die. The collar is raised up around the planchet, then after the strike, it is pulled back to release the coin or in other words, the die pushes the coin out of the collar. The collar fits close around the die and would need to be lubricated so that it can move without friction, but it isn't so close that there isn't a gap between the two. When struck with excessive pressure, metal from the coin is forced in the small gap between the die and collar. If that metal remains on the coin, it resembles a thin fin around the rim. If it is a reeded coin, the collar is what gives it the reeds. Think of the collar as a form, or mold, that the coin was mashed into giving it its shape. If the collar is reeded then the fin will be reeded.</p><p><a href="https://www.coincommunity.com/forum/uploaded/Swamperbob/200857_collarDieSketch.JPG" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.coincommunity.com/forum/uploaded/Swamperbob/200857_collarDieSketch.JPG" rel="nofollow">https://www.coincommunity.com/forum/uploaded/Swamperbob/200857_collarDieSketch.JPG</a></p><p><br /></p><p><a href="http://www.nbbmuseum.be/wp-content/uploads/2014/06/Foto-31.jpg" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.nbbmuseum.be/wp-content/uploads/2014/06/Foto-31.jpg" rel="nofollow">http://www.nbbmuseum.be/wp-content/uploads/2014/06/Foto-31.jpg</a>[/QUOTE]</p><p><br /></p>
[QUOTE="Hommer, post: 2910954, member: 73266"]Actually, the collar fits around the die and moves back and forth on the die. The collar is raised up around the planchet, then after the strike, it is pulled back to release the coin or in other words, the die pushes the coin out of the collar. The collar fits close around the die and would need to be lubricated so that it can move without friction, but it isn't so close that there isn't a gap between the two. When struck with excessive pressure, metal from the coin is forced in the small gap between the die and collar. If that metal remains on the coin, it resembles a thin fin around the rim. If it is a reeded coin, the collar is what gives it the reeds. Think of the collar as a form, or mold, that the coin was mashed into giving it its shape. If the collar is reeded then the fin will be reeded. [url]https://www.coincommunity.com/forum/uploaded/Swamperbob/200857_collarDieSketch.JPG[/url] [url]http://www.nbbmuseum.be/wp-content/uploads/2014/06/Foto-31.jpg[/url][/QUOTE]
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