Before u use this method ya wanna make sure that the surface of the coin or token is intact for the most part, This method is harsh and can completely destroy the item your trying to clean. This is how I remove thick corrosion from coins. Soak in white vinegar brush with soft bristle brush until corrosion is removed, Then neutralize the acid left on the coin with backing soda and water. Then let dry and coat with coin care. Hope this helps.
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