You won’t believe these 3 simple and cheap methods for removing those previously-permanent milk spots from silver coins and rounds!
http://www.youtube.com/user/austacker – cloudy ammonia method (user has closed account now, sorry)
http://www.youtube.com/user/JezebelDecibel – jewelry cloth method
http://www.youtube.com/user/TestTubeWorld – eraser method (user has closed account now, sorry)
Information on “cloudy ammonium”: http://en.wikipedia.org/wiki/Ammonium_hydroxide
My silver bullion website: