My system is not decent

Roughly speaking, the knives, cloth, and coins in the pre-Qin period were all dumb.

However, the coins after the Ming Dynasty are relatively recent and have not been deeply oxidized, so the sound is crisp and loud.

If we throw the coins of the pre-Qin period on the ground and there is a crisp sound, then the coins are not reliable;

Conversely, if Ming and Qing coins are muted when thrown to the ground, there must be doubts.

The ancient coins of the Five Dynasties must be dumb, which is difficult to counterfeit.

So Li Mingsheng squinted his eyes when he heard it, this time it was a real hammer!

"When you do something, you have to do a complete set, and let's identify it from the version and smell!" Xiao Xiangqi said suddenly.

"Okay, Old Xiao, you have such abilities, why did your apprentice make eye contact instead?" Li Mingsheng said with a smile.

Xiao Xiangqi sighed helplessly and said: "If he hadn't been taught this knowledge, he wouldn't be able to drill his eyes, because he is too confident, so he will take medicine with eyes!"

Hearing this, several professors sighed. It seems that such a thing may have happened to them.

"Not much to say, let me smell it. In fact, this point is superfluous. Xiao Chen is a master at making old things!" Li Mingsheng laughed when he said this.

He suddenly thought, if this coin was made by Chen Wenzhe, would they be able to identify it?

However, he also has enough confidence in his ability to listen to the authenticity of the sound. He really does not believe that someone can make the mute sound of the ancient copper coin.

Shaking his head, he shook off the distracting thoughts in his mind.

It is also very simple to identify ancient coins by smell.

It can be said that this method is the simplest one in the identification of ancient coins.

Because counterfeit coins are mostly forged and decorated with chemical substances, they often emit an unpleasant and pungent chemical smell, while genuine coins do not have this smell.

That's why Li Mingsheng thought it was unnecessary. If the flaw could be found so easily, the coin would not be able to reach everyone.

As for the type, the most important way to distinguish ancient coins from the type is that in addition to looking at the money books, you must get in touch with the real objects to get familiar with the authentic coins of each dynasty.

Not only should we pay attention to rare products, but we should also pay attention to a large number of common varieties.

Because there are few counterfeit products in these ordinary products, they can truly reflect the characteristics of coins in various historical periods.

For example, in the Warring States period, the knife cloth had a special shape, so counterfeiters had to use the genuine ones to make fakes. The flaws were that the coins after foundry casting were small, thick, superficial, rough in copper, rusty in color and easy to fall off.

Chen Wenzhe is not uncommon for such a knife coin!

Moreover, when the knife coin is cast, its gate is on the knife ring, and the gate of the cloth coin is at the head end. After being out of the mold, it is basically not trimmed and kept in a natural state.

For the sake of appearance, counterfeiters often smooth the edges of knife coins and cloth coins, which is actually superfluous and reveals flaws.

Now that the Internet is developed, Chen Wenzhe has watched many videos of appraising various silver and copper coins.

For example, the Guangxu silver coins of the Qing Dynasty and Yuan Datou, the hardest-hit areas of silver coins, all said that they were silver coins, but they did not mention the real silver and counterfeit coins.

Moreover, the price of each one is very high, the lowest is more than 1000, and it can be as high as [-] or [-].

There are also copper coins, if you take one out, they are all big coins, and people with small coins are not rare.

In reality, how can there be so much money for you to pick up?

Also picked up five or six at once?There are even dozens of coins slipped out at once. Is this possible?

You must know that a lot of big money is carved mother, sample money, commemorative edition or simply spending money and offering money. This kind of money is originally a minority, even in the era when it was issued, it is very rare, and it is even less handed down now.

It is because of the rarity that the price is high. If you can find so many at once, how can it be valuable?

Without further ado, Chen Wenzhe and Zheng Yu were in the limelight this time.

Da Qi Tong Bao, which is out of print in China, is almost confirmed.

There are four or five experts here, and none of them can find any flaws, which is a good thing.

As for the missing character Qi, with modern technology, it is not difficult to just confirm what character it is.

Not to mention that there are still some remnants of this copper coin, even if it is covered up, as long as it once existed, it can still be seen.

The current technology can rust things together to form a lump of unknown objects, and restore them through machine scanning and software, so that you can clearly see the original appearance of things, and even some tiny handwriting can be clearly seen.

The dating research of the Institute of Science and Technology of the Chinese Academy of Sciences is also very clever.

Putting all these together, Chen Wenzhe's coin is missing a lot of words, so there's really no way to say what's wrong with it.

"We have just witnessed the birth of the first Daqi Tongbao in China?"

Up to now, Professor Li Mingsheng still can't believe it.

"Xiao Chen is amazing. After being transformed by others, it is not easy to recognize this coin!" Fan Jiaxuan said with a little admiration.

"Xiao Chen, can this thing come out?" Xiao Xiangqi said with bright eyes.

It can be seen from his student's purchase of the Yuanguang silver coin that Xiao Xiangqi should also like to collect ancient coins, and this has now been confirmed.

"This kind of thing can still be produced? Xiao Chen is not short of money!"

Before Chen Wenzhe said anything, Professor Li Mingsheng was not happy.

"It's over, this is an exchange meeting, not a trade fair!" Professor Mu Kairong said.

"Why can't you trade? Isn't it normal to exchange and trade after looking at something?" Xiao Xiangqi said.

"Bartering is fine, but money trading is not good, and it is prone to problems." Mu Kairong said seriously.

"Okay, okay, this exchange meeting is not very formal, so don't worry about it, Lao Mu, you didn't perform today, what's the matter? You haven't shown something for us to see? "

Mu Kairong smiled: "I and things are not simple, I have taken care of them carefully."

After speaking, Professor Mu Kairong carefully took out a scroll from the satchel beside him.

"What? It made you so cautious?" Seeing Mu Kairong's actions, Xiao Xiangqi laughed immediately.

"Good stuff, when I see it later, I'm sure your jaws will drop, and at least your eyes will drop!"

After speaking, Mu Kairong took out the scroll and carefully placed it on the table.

After putting it down, he tidied the tablecloth on the table. When everything was ready, he slowly untied a small rope and slowly opened the scroll.

"A picture? Treat it so seriously, it seems to be an authentic picture of a celebrity?" Xiao Xiangqi was still cooperating.

However, at this time, no one paid attention to Xiao Xiangqi's performance, but concentrated all their minds on the picture in front of them.

Chen Wenzhe was no exception. He just glanced at it and realized that this word is really not simple.

Although only a few words were leaked, but these few words lifted his spirits.