SirNim
Well-Known Member
The general rule about cleaning coins is: DON'T.Ask someone who collects coins,check any coin collecting store or contact companies that sell collectible coins.:wave:
There are some tips here for coins or medallions which have little value. Generally, as long as the tarnish is even throughout the surface, that's attractive in its own way and should be left alone. If the tarnish is uneven, and you don't have any concern about the value, then you may try to clean it.