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<p>[QUOTE="GDJMSP, post: 3228515, member: 112"]Yes, they are all lighter in color. But they are not lighter because you're seeing more luster, they are lighter in color because the acetone removed some of the substances accumulated on the coins. If I had to guess I'd say that those coins were exposed to smoky air for a long time. It could have been caused by indoor fireplaces, gas heat and or stoves in the home, the owner being a smoker, or air in the location (town) being smoky from industrial causes. And there's probably a couple of other possible causes as well. Even the foods and the cooking methods commonly used by the owner could cause it.</p><p><br /></p><p>Only two of those coins even have a any luster remaining - the 1st and the 2nd. The 1st has very, very little, and 2nd a little more. And yes I agree it is more readily visible on both in the after pics. But it was also visible on the before pics. My point with this comment is that yeah I agree you can more readily see the luster there is. But I want to make sure you're not equating the lighter color with actually being luster - because it isn't.[/QUOTE]</p><p><br /></p>
[QUOTE="GDJMSP, post: 3228515, member: 112"]Yes, they are all lighter in color. But they are not lighter because you're seeing more luster, they are lighter in color because the acetone removed some of the substances accumulated on the coins. If I had to guess I'd say that those coins were exposed to smoky air for a long time. It could have been caused by indoor fireplaces, gas heat and or stoves in the home, the owner being a smoker, or air in the location (town) being smoky from industrial causes. And there's probably a couple of other possible causes as well. Even the foods and the cooking methods commonly used by the owner could cause it. Only two of those coins even have a any luster remaining - the 1st and the 2nd. The 1st has very, very little, and 2nd a little more. And yes I agree it is more readily visible on both in the after pics. But it was also visible on the before pics. My point with this comment is that yeah I agree you can more readily see the luster there is. But I want to make sure you're not equating the lighter color with actually being luster - because it isn't.[/QUOTE]
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