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Cleaning Coins with a Ultrasonic Cleaner
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<p>[QUOTE="Mike Thorne, post: 2313993, member: 56869"]The only coin I ever had that I know was cleaned by an an ultrasonic cleaner was a 1913-S 25c I had submitted to ANACS. They told me that there was too much crud around the mintmark so they asked if they could clean it ultrasonically to make the determination as to its authenticity. I gave permission, they decided it was a genuine piece, and I never liked the look of the coin after that. So much for ultrasonic cleaning![/QUOTE]</p><p><br /></p>
[QUOTE="Mike Thorne, post: 2313993, member: 56869"]The only coin I ever had that I know was cleaned by an an ultrasonic cleaner was a 1913-S 25c I had submitted to ANACS. They told me that there was too much crud around the mintmark so they asked if they could clean it ultrasonically to make the determination as to its authenticity. I gave permission, they decided it was a genuine piece, and I never liked the look of the coin after that. So much for ultrasonic cleaning![/QUOTE]
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