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<p>[QUOTE=&quot;sand, post: 8235190, member: 118540&quot;]Your edge photos are interesting.</p><p>I don&#039;t see any large, thick file marks.</p><p>However, your photos are not high resolution enough, to be able to see, if there are any small, fine/thin file marks.</p><p>If someone used fine sandpaper on the edge of the coin, then that would created many parallel, fine/thin file marks.</p><p>Do you have a loupe, and/or a USB microscope?</p><p>You can buy a decent USB microscope, one with a light source, and a stand, and a knob which would allow you to raise and lower the microscope, and a fine adjustment/focusing knob, that can be connected to a desktop computer via a USB port, for $100 or so. If you have a Windows desktop computer, then you can use Microsoft&#039;s Camera application, to view the coin, on the computer monitor, and even take photos/screenshots of what you see. It took me a little bit of time, a couple of hours or so, to figure out, how to use Microsoft&#039;s Camera application.</p><p>Here&#039;s the microscope, that I bought from Amazon, in 2018. It looks like it&#039;s still available, for $76 plus tax and shipping. It&#039;s not perfect, but it&#039;s usually good enough, for my purposes. For example, I can use the big knob, to raise the microscope shaft, and then I can hold the edge of a coin, under the micrscope shaft, to view and photograph the edge of the coin. If this link doesn&#039;t work, then you can find the microscope, by searching Amazon for the exact phrase &quot;Vividia USB Digital Borescope&quot;.</p><p><a href="https://smile.amazon.com/gp/product/B005P40OXY/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&amp;psc=1" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://smile.amazon.com/gp/product/B005P40OXY/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&amp;psc=1" rel="nofollow">https://smile.amazon.com/gp/product/B005P40OXY/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&amp;psc=1</a></p><p>[ATTACH=full]1448547[/ATTACH]</p><p>And a cheap 20x loupe only costs $50 or maybe less.</p><p>I bought an Eschenbach 20x loupe for $100 from Wizard Coin Supply for $100 in 2009, because I heard that Eschenbach is pretty good, but I don&#039;t know if it&#039;s significantly better than a cheap or medium priced 20x loupe. I&#039;m not a loupe expert.</p><p>You may also want to buy a 10x loupe, because a 10x loupe is sometimes easier to use, than a 20x loupe, for instances when you don&#039;t need the 20x magnification.</p><p>I think Wizard Coin Supply also sells stuff on either Ebay or Amazon, or maybe both.</p><p>I use my microscope, much more often, than my loupes, because my microscope is easier for me to use, than my loupes.</p><p>Were you able to examine the edge of the coin, up close, to see, if there are any small, fine/thin file marks?</p><p>If NGC told me, that my coin had file marks, then I would use my microscope, and my loupes if necessary, to examine the edge of the coin, to see for myself, because I would like to see for myself. I would want to, at least try, to see for myself. Such things, are always good learning experiences.</p><p>NOTE : NGC probably has better, more powerful microscopes, than I have. Therefore, NGC may be able to see certain things, such as extremely thin/fine file marks, that I couldn&#039;t see. I don&#039;t know.[/QUOTE]</p><p><br /></p>

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