Whether ancient or modern, in order to better trade, a variety of currencies were invented, and the appearance of each dynasty's currency was also very different, with its own cultural strong colors, such as knife coins, jiaozi, and well-known silver.
In the costume TV series, silver as the transaction of money, often are the most appeared, and it looks like all white flowers, in order to pursue visual beauty, silver is often the shape of the boat, and the TV series in order to pursue the desired woman, spend money to throw thousands of dollars without pain, but also very dashing people do not look for.
In fact, ancient technology is limited, it is impossible to make every silver shape regular, and in ancient times silver is very rare, generally are broken silver, small ingots, medium ingots and yuan treasure, so the value is very high, to the rich Qingming period, silver became the main circulating currency. When the country is rich, silver has become the main circulating currency, then when the war is chaotic, the value of silver will be higher, so many people may not have seen the shape of the regular yuan treasure in their lives, and they should usually use copper coins and broken silver.
However, it is precisely because of the scarcity of silver, when the ancients traded, there is no good way to identify, they will use their teeth to bite the silver to test the true and false, over time, it will lead to irregular prints on the silver, and because of the passage of time, even the original silver will be covered with dust.