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Posted 07/25/2018 10:50 am
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Is there a thread that compares cleaned coins to original finish? What does one look for to tell the difference?
Is there a thread that compares cleaned coins to original finish? What does one look for to tell the difference?
Personal opinion is that it really isn't that useful to see computer images of different coins and try and determine from them what is cleaned and what isn't won't be real helpful. Sure if a coin is OBVIOUSLY harshly cleaned your going to be able to tell, but if the cleaning is more subtle computer images may not help you at all. Especially when you consider the images are probably taken under different resolutions, with different cameras, different lighting and then viewed on a computer screen each of which in my opinion renders images and colors slightly differently. And then there is the surfaces of the coins themselves which also tend to image differently. The only way to learn cleaned from original is the same way as learning grading, but examining a very large number of coins in person. Coin shows can be good for that, but you also have to consider that the lighting at coin shows is typically very different than what you have at home. A coin that looks great at the show may not be as impressive once you get it home. So that is another skill you have to learn, how to adjust for local lighting.
