Exchange barter character wore. In exchange for cloth, tea, porcelain and handicrafts Chinese received imported European goods. As a means of payment used silver ingots of different weights, patterns changed during the reign of the new emperor. As a bargaining chip until recently used copper coins, other means of payment became as paper plates and were silver ingots. Along with the development of trade with other countries into use silver dollars and colonial coins. Different in the north and south of the measure weight and length were partially counted in decimal notation. But in the daily trade in the country, held a traditional duodecimal measures in the provinces.