Silver has been used for making coins since the times of the Greeks.
Silver has an international currency symbol of XAG under ISO 4217.
Some of the most common silver bullion coins are the following:
Canadian Silver Maple Leaf
Mexican Silver Libertad
Chinese Silver Panda
American Silver Eagle
Australian Silver Kookaburra
Australian Silver Kangaroo
Austrian Silver Vienna Philharmonic
British Silver Britannia
Silver rounds and silver bars are privately minted silver coins.
Silver coins become brown or black due to the sulphur present in the surrounding air. To prevent this, coins are covered with acid free jelly.
There are various methods of cleaning silver coins; using lemon acid or acid fluid.
Many rare silver coins are for sale in numismatic marketplaces for the benefit of coin traders.