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Search results "coin-damage"

For coin collectors, it's important to be able to distinguish between natural damage from storage or transport and signs of artificial cleaning. The former, known as 'bag marks,' result from coins coming into contact with each other at the mint or in bags. The latter are the result of mechanical action intended to give the coin a shine, which irreversibly damages its surface.

Many beginner collectors face the problem of dirty coins covered in green oxides. In search of a solution, they often turn to online resources, where one can find numerous cleaning tips: from washing and rinsing to soaking in various solutions and even heating.