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Make sure the coin is not valuable before you try to clean it because you do not want to scratch it with harsh materials. Run the coin under warm water to remove all the particles
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Any product that is a tarnish remove will work for cleaning silver coins. I think that Goddard's foaming cleaner is the best. Use a lint free cloth when cleaning.
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1. Verify the type of coin you are cleaning. This information can be obtained by the coin's date and mint mark, if it is visible. If you think the coin is valuable, take it to a coin
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1. Mix 1/8 cup potassium sulfide with 5/8 cup warm water and set in a shallow saucer or bowl. Make more or less solution as needed, adding one part potassium sulfide for every five
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