How to identify the authenticity of coins?

Distinguish the authenticity of ancient coins: the biggest problem for ordinary people is to distinguish the authenticity. From patina to color rust (modern patina is artificially made of red rust or green rust) and the spread of age and historical traces (wear degree) are called handed down products. Because the collection plays with the protruding parts such as Qian Wen and Guo Qian, they are often smooth and copper-colored, and the rust layer in the sunken parts is obvious and the color is heavier. New coins can't have rust layer and rust color. The old coins are out of fire, but the copper tone is too thick to make a cadence. Modern copper (crisp sound) is completely different from ancient copper (dull sound). You can find something by touching more ancient coins. In general, the intuitive method combined with literature research can basically meet the needs of judging authenticity.

You can also use intuitive methods. If you have the real thing, clear original drawings or rubbings made by seiko, or download the same kind of coins, with the help of computer software, you can immediately see through the counterfeit goods.