USA 1991 Silver Eagle Toned 1 Dollar Coin
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€125
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USA 1991 Silver Eagle Toned 1 Dollar Coin
USA 1991 Silver Eagle Toned 1 Dollar Coin
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@Andromeda Gaming Rainbow toning on silver coins occurs when the metal undergoes a slow natural oxidation process. When trace amounts of sulfur or other airborne chemicals react with the silver, it forms a microscopic layer of tarnish.The rainbow effect happens through a physical phenomenon called thin-film interference, which is the same principle that causes a slick of oil on a water puddle to show vibrant colors.
Asking Price: €125
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