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<p>[QUOTE=&quot;sambyrd44, post: 4124473, member: 26653&quot;]This coin was soaked in MS70 and then rinsed with distilled water. The coin has remained stable 20 years now and was slabbed by ANACS maybe 18 or 20 years ago. My experience with the product on UNC and Proof copper has been negative though overall. Pink unnatural hues as well as Blue and darker coins that are not as stable long term. I was doing a lot of early proofs and experimented on some copper and found out fast to avoid this product. My own perspective and experience only. Silver the product rocks with careful diluted use. [ATTACH=full]1068743[/ATTACH][/QUOTE]</p><p><br /></p>

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