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<p>[QUOTE=&quot;desertgem, post: 1407986, member: 15199&quot;]Too many people want such a product. Many have older coppers such as large cents and indians that were badly cleaned and colored abnormally. A darkener can make a damage 1872 IHC look much better to a buyer on ebay or elsewhere that doesn&#039;t know how to distinguish. Amateurs often overuse the darkener, making it fairly obvious, but a pro user, can produce an effect that is harder to distinguish. Those that use sulfur flour, flowers of sulfur ( they are different) or rubber maker&#039;s sulfur ( which is low acid and lessens compounding bad effects) act the same. Vasoline/petroleum jelly is a often used carrier for the sulfur, but there are certian processed sulfur that can use water as a base. Time and energetic light can vary the effect.</p><p><br /></p><p>To do such to defraud someone is wrong! But experimentation so one knows what the end effects can look like is honest education. Specifics about use should be limited to generalities to prevent one-offs. Photos are almost useless except for poorly done samples, you have to have it in hand and rotate it around in light and observe the edges and details.IMO.</p><p><br /></p><p>Jim[/QUOTE]</p><p><br /></p>

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