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Re: MS70 and blue copper test (V1)
I've done this with dozens of Lincolns. I feel like I can spot MS70 from a mile away. I've also tested using several coin cleaners, DD, sulfur diluted in water and heat. I considered doing a write-up so people could spot the tells of these methods, but some of these turn Lincolns into market acceptable coins that I've seen… -
Re: MS70 and blue copper test (V1)
I have no idea how it is done so this is what I can say for sure except for the laser part. I look at coins using a stereo microscope. For that reason, I can see the surface of coins BETTER THAN anyone who does not use one. I have been doing this for a long time. I have learned what the surfaces of coins look like under…
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