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Did I buy a Proof Seated Liberty Half?
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<p>[QUOTE="princeofwaldo, post: 1253982, member: 24091"]I'll post an example later this evening of "before and after" using the Windex method. Agree, ammonia isn't something you would want the coin to sit and soak in. However, a quick dip followed by extensive flush with clean water provides some remarkable results, especially on proofs. Doesn't seem to do much on uncirculated coins, especially copper. Acetone being a solvent, it will disolve all sorts of contamination from the surface of a coin, but if that contamination has already reacted with the metal (PVC damage for instance) part of the coin is going to be removed along with it. I supose for some applications it would be great, in particular, tar or other oil based adhesions on the surface of a coin. Much like you observed, I don't think it will do much for the coin in this thread.[/QUOTE]</p><p><br /></p>
[QUOTE="princeofwaldo, post: 1253982, member: 24091"]I'll post an example later this evening of "before and after" using the Windex method. Agree, ammonia isn't something you would want the coin to sit and soak in. However, a quick dip followed by extensive flush with clean water provides some remarkable results, especially on proofs. Doesn't seem to do much on uncirculated coins, especially copper. Acetone being a solvent, it will disolve all sorts of contamination from the surface of a coin, but if that contamination has already reacted with the metal (PVC damage for instance) part of the coin is going to be removed along with it. I supose for some applications it would be great, in particular, tar or other oil based adhesions on the surface of a coin. Much like you observed, I don't think it will do much for the coin in this thread.[/QUOTE]
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