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<p>[QUOTE=&quot;dcarr, post: 2598370, member: 4781&quot;]A constant-radius curvature on a clip would be suspicious to me. I&#039;ve personally struck all sorts of things, and I can say from experience that the changing radius of the clip curvature as seen on the coins in this thread is consistent with my experience. Where the coin relief is highest is where the least amount of metal movement occurs. The fields of a coin are where the most metal movement occurs. This can cause a smooth (constant radius) clip to become far from smooth after the strike.</p><p><br /></p><p>The &quot;Blakesley Effect&quot; is more prevalent on larger coins where there the planchet rim upsetting is greater. And note that severely damaged blanks like the coin shown at the beginning of this thread can sometimes fail to pass through some steps in the minting process. In some cases where a clip is fairly large, even if it did pass through the upset mill, there would be no effect on it. And if the rims were not up-set on the planchet, there would not be much of a Blakesley Effect. Coins with smaller clips are the ones that tend to show the Blakesley Effect because those do get raised rims from the upset mill, for the most part.</p><p><br /></p><p>I would have to see the coin in hand, but I would presume the error shown at the beginning of this thread is genuine.[/QUOTE]</p><p><br /></p>

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