Newbie question - when buying a silver coin such as the double florin, should the colour be bright or blackened? I understand silver blackens with age, so does that mean bright old silver coins have been cleaned/carefully stored/preserved in some way? Persoanally I like the blackened coin, it looks older and more 'antique'. Images borrowed from eBay, all credit to the photographers, I hope they will not mind. Thanks in advance, Pete