   neutral   The one made in the early Tang period is bigger and has more characters on it, while the one with smaller and elegant characters was made in late Tang period. Look carefully, and tell me if you see the difference now.     neutral   Yes, they are different! But it's too professional. What I need is just being able to tell the real from the fake. Do you know any method we can use to tell a fake ancient coin?  
    neutral   Various methods were used in history to produce fake coins. We usually send the coin to an authorized unit to have it tested by experts with special machines. We can judge it with naked eyes.     neutral   I see. By the way, China was more than once ruled by foreign tribes in history. Did they issue their own coins in China?  
    neutral   Certainly, they did. Liao Coins and Song Coins, for example, coexisted in circulation during the Southern Song and Yuan period some 800 -1000 years ago. The Liao Coins look plain and bold in style, just like the characteristics of the Mongolian tribe. Let me look for one and show you.     neutral   
 Here. How many languages could be read? Is there English, Japanese or Chinese ones here as well
 Exciting! How do these two types of old coats compare? Which type seems better-