1, text-sensitive. Words first look at "breath", and "breath" is style and charm. Coin figures in different periods have different writing styles and charms. It also depends on the composition of the characters on the money surface, whether they are coordinated and unified, and the characters are often diametrically opposed. Words are not harmonious, just like calligraphy If it were not written by the same person, the style of the book would be different.
2. Identify rust. There are many kinds of rust in the pit. Colors are yellow, red, blue, green, black and so on. Some are all green rust, some are partial rust, and some are rusty. Generally speaking, the closer the rust, the looser and shallower it is. Many coins handed down from ancient times have no lead color, but the color is very dark and simple.
Extended data:
Characteristics of Ancient Chinese Characters in Qianlong Bao Tong;
To identify whether the text of a coin is correct, we must first look at whether it conforms to the characteristics of the time; The second step is to see if it meets the characteristics of this variety. For example, "One Flower" is a pre-Qin seal script, but it also has the characteristics of Qi characters, which is different from the money characters of other countries in the same period.
Found money from the Eastern and Western Zhou Dynasties. If Qian Wen wrote it in Xiao Zhuan, it is obviously a fake. Qin Banliang enjoys a high reputation among ancient coins. Its money is thick, its copper is excellent, its Qian Wen uplift is majestic, and the word "human" in the word "two" in Qin Banliang is majestic. If you find Qian Wen apartment, you will know it is fake at a glance.
If you see that the coins in Baoyuan or Baoquan Bureau in Qing Dynasty have errors in Manchu writing, you should consider that Baoquan and Baoyuan Bureau are the most formal mint bureaus in Qing Dynasty, and there will never be errors in Manchu writing, so the coins you see must be counterfeit.
Baidu encyclopedia-ancient coins