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Toning examples... how, why....what?
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<p>[QUOTE="Roerbakmix, post: 4892128, member: 100731"]It is very easy to chemically patinate (ancient) silver coins. If you search on YouTube, you’ll find many examples. Some artificial patinas are easy to spot (I’m always a bit wary with the ‘rainbow patina’), others are more difficult. The cabinet toning for example is just the reaction between silver and sulphur over many years: it can be achieved in a minute chemically. </p><p>It may sound strange, but smell your coin. It should be odourless.[/QUOTE]</p><p><br /></p>
[QUOTE="Roerbakmix, post: 4892128, member: 100731"]It is very easy to chemically patinate (ancient) silver coins. If you search on YouTube, you’ll find many examples. Some artificial patinas are easy to spot (I’m always a bit wary with the ‘rainbow patina’), others are more difficult. The cabinet toning for example is just the reaction between silver and sulphur over many years: it can be achieved in a minute chemically. It may sound strange, but smell your coin. It should be odourless.[/QUOTE]
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Toning examples... how, why....what?
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