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<p>[QUOTE=&quot;Midas, post: 70027, member: 2761&quot;]That is why I hope that computer laser scanning can be eventually used for technical grading.&nbsp; There are a number of technologies that can measure a surface and give it a numerical number (let&#039;s call it &quot;X&quot;).&nbsp; We could use this coin, or a number of given coins averaged out so that we have a base coin database to compare the submission against.</p><p><br /></p><p>Take your submitted coin (call it &quot;Y&quot;).&nbsp; The closer numerical values for X and Y are to each other, the higher the grade.&nbsp; The greater the differance, the lower the grade.</p><p><img src="https://www.ms.ornl.gov/researchgroups/SPM/methods/Tribology/Laser/images/wearcfcc.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /> </p><p>This would take all of the human subjectivity out from technical grading.&nbsp; Of course luster, mirror-like surfaces, and eye appeal still would be subjected (maybe not as these scanners can also measure color too), but what a huge hurdle that could be addressed!</p><p><br /></p><p>Otherwise, when humans and eyes get involved...opinions on grading WILL ALWAYS differ!![/QUOTE]</p><p><br /></p>

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