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<p>[QUOTE=&quot;Colonialjohn, post: 6565942, member: 57741&quot;]My Ebay partner just bought $7,000 worth of slabbed coins. One of the coins was a PF69 Kennedy. Since I am not into this kind of coin or collecting sphere and these coins are going to Stacks/Bowers I took a look at the PF69 under a stereo microscope. Under 5-25X I could not find &quot;ONE&quot; contact mark. Not one after a 15 minute review - so I asked myself what is a PF70? On the GSA silver dollars I sold both on Ebay the UNC CCs and non-UNC CCs and others. I guess sliders exist? Do onot know or care. The way under a stereo microscope (SM) I grade Morgans and I am usually spot ON is the presence of luster which can be seen an unit eruption of mint flow lines under a SM and contact marks on the face. Assuming no heavy gouges seen in the fields or neck area. I really do not even bother with the reverse other than the central breast area after seeing full mint luster on the obverse. I guess my point is that I still can not tell the difference between any grade so I would grade something like MS60/61 or MS63/64. Its easier with a SM as it can spot any disturbed field surfaces a mile away. I heard on a TPG video a grader gets it right 80% of the time and it showed BEHIND THE SCENE A GRADER - which is why a team or consensus is performed in getting the final slab posted grade. Also interesting most grading is done with a 5X loop and for 5 minutes. This is the time interval I have heard from most posters here and other channels. Ironically I do appreciate the art of grading ... don&#039;t get me wrong as I do not have the experience to even intorduce strike into any real Morgan or Peace Dollar die marriage and to consider this part of my grading evaluation. Its a lifetime ... of experience.</p><p><br /></p><p>John Lorenzo</p><p>Numismatist[/QUOTE]</p><p><br /></p>

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