【正】 From shells to "implement" coinsChina is the birthplace of paper money and one of the earliest users of metal coinage. In the earliest times, cowrie shells were widely used as money. Cowrie and tortoise, pearls and pieces of jade are know to have been used as tokens of exchange before the Shang dynasty (16th-11th century BC) and to have come into wide use during that time. Even today, Chinese characters connected with the idea of value or wealth carry the radi-