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<p>[QUOTE=&quot;Burton Strauss III, post: 2756651, member: 59677&quot;]You need deep knowledge of the standards and key wear points, weak strike points, etc. of the specific coin.</p><p><br /></p><p>For example:</p><p><br /></p><p>On the obverse, look at the sharpness of the shield outline and the lines within the shield. The edges of the star show wear first, but the shield is one of the strike diagnostics.</p><p><br /></p><p>On the reverse, look at the outline of the C (those fins get knocked off first) and then at the objects within the C. On a truly high grade, solid strike, the edges of the diamond at 9 o&#039;clock are RAZOR sharp and there is a point at the top. Never seen one like that, have you. I have, one, that Dr. Bruder showed me in Portland that came back MS67.</p><p><br /></p><p>On a weaker strike - like this one - the diamond doesn&#039;t fill. The striations on the planchet aren&#039;t quite erased by the strike and the other more central items will show clearly - the veins on the leaves, the fletchings on the arrows, etc.</p><p><br /></p><p>I personally can&#039;t accurately differentiate between 65, 66, 67, 68 - and have only looked at a few proofs (my interest is circulated XFs). But PF67 doesn&#039;t surprise me.[/QUOTE]</p><p><br /></p>

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