silver coin
銀貨 / silver-coin — Names of money
Money made of silver. For most of history it was the main actor.
Incuse stater of Metapontum6th century BC
Karshapana (punch-marked silver coin)400–300 BC
Silver coin from the period of Bindusara, Mauryan dynasty297–272 BCE
Not as expensive as gold, and not as cheap as copper. Because of this "just right" quality, it was silver that supported daily commerce for over two thousand years.