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<p>[QUOTE=&quot;Ordinary Fool, post: 2668945, member: 85318&quot;]Compare the surface finishes with very high magnification, 80-200X, of earlier and later zinkers.</p><p><br /></p><p>Consciously make an effort to note any spots that appear to be electro-static discharge on the finished surface.</p><p><br /></p><p>Toss in a few proofs for kicks and grins.</p><p><br /></p><p>Does this notable change result due to the dies being made with some amazing cnc machining that leaves that textured finish, the plating procedure or a combination of both?</p><p><br /></p><p>The surface geometry of the dies, whose cutting edges seemingly do not cut thru soft plating upon their violent single impacts to the planchet, is quite an amazing feat of engineering and machining even if plated twice.[/QUOTE]</p><p><br /></p>

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