With Mr. Liu's voice, the outside immediately started to act. After a while, a man and a woman walked in with their own things.

"Teacher, this is the tool you want." The two of them respectfully placed the micrometer and a small and exquisite high-precision electronic scale on the workbench. Old Liu said casually: "Don't leave first, wait a moment, after I identify this ancient coin, you can fight here."

The two young men showed joyful expressions on their faces. The girl in her twenties asked, "Teacher Liu, what treasure have you discovered?"

Mr. Liu smiled and said, "I just discovered a sword of the Qiankun magic of the Medicine Saint Li Shizhen, and now I have found another suspected authentic Daxia Zhenxing Ancient Spring. Xiao Zheng, I will let you see this kind of national treasure in a while."

After saying that, Mr. Liu didn't have the heart to pay attention to these two disciples anymore, but focused on operating the tools.

After a while, Mr. Liu said excitedly: "It should be the authentic product! It is 23 mm in diameter and weighs 2.8 grams. The diameter is exactly the same as the authentic product from Libo, and the weight is slightly 0.6 grams. However, this is not a problem. The Daxia Zhenxing shot in 2004 is more important than this one. The key is that this Daxia Zhenxing should be the same as the Libo!"

The two young men also came up and stood side by side with Yang Jing. Mr. Liu continued: "Look at this Daxia Zhenxing. Its copper is red, and the body of the coin is rusted and patina is old. Its rust is like armor, tightly wrapped in the body of the coin. Rust is born from bones, and it is all things of old age and cannot be used in modern times. Judging from its casting, it is regular and dignified, with good faces. The "big" of the coin text is from "Tai", and the real calligraphy contains the rhyme of the official script. The calligraphy and basic shapes have typical characteristics of the coins that have been unearthed previously."

Yang Jing asked: "Old Liu, can we judge the authenticity of this copper coin from these aspects?"

Mr. Liu smiled and said, "Of course there is more than that. The Zhenxing coins of Daxia were cast during the Zhenxing period of Daxia during the 16 Kingdoms period, which was minted by Helian Bobo of Daxia during the Zhenxing period of Daxia during the 16th Kingdom period, that is, 419-424 AD. Helian Bobo of the Huns established a country in Shaanxi Province in 407 AD in 407 AD, and was founded in Chang'an in 419. After occupying Chang'an in 419, the Zhenxing coins of Daxia may be cast at this time, with the legacy of the shamans and the inner and outer contours. The four characters "Daxia Zhenxing" in the right direction are read in the real script of half-li and half-cartoon. The character "Daxia" is from "Tai". Among them, "Daxia" is the country name and "Zhenxing" is the year name. This is the first time that the country name and the year name are combined in coins in Chinese history, and it has important historical significance."

"The diameter and weight of this coin are very consistent with the characteristics of the authentic products of Daxia Zhenxing. Let's take a look at the novel text. This authentic style is open and stretched, and has the rhyme of the early Six Dynasties. Therefore, from the combination of rust color, shape, casting and calligraphy, we have no reason to say that this Daxia Zhenxing is a fake."

Mr. Liu looked at Yang Jing again and said with a smile: "Not to mention that this Daxia Zhenxing money was taken out from the money sword brought by Xiao Yang. This sword light was buried underground for more than a hundred years. In the late Qing Dynasty and early Republic of China, there was probably not such a high level of fake technology to make such exquisite fakes, right? Moreover, the first appearance of Daxia Zhenxing in the Quanjie should be in the late Qing Dynasty and early Republic of China. The money hidden in the prescription of Yaoyu was first recorded in "Medical Rain and Grocery Song" in 1925. If we infer this, even if it was imitated based on the Ding Prize, its imitation was less than a hundred years ago. In a hundred years, it is difficult to penetrate the soil and wait for people to dig it out to be true. Therefore, the authenticity of the patina rust color is not difficult to identify. In a word, it is not easy to imitate if the patina rust color has been buried in the soil for thousands of years!"

Finally, Mr. Liu emphasized and said, "This Daxia Zhenxing is undoubtedly the authentic product!"

Although Mr. Liu is engaged in cultural heritage protection technology and specializes in protecting and restoring bronzes and ancient bronzes, his identification level is extremely high. Without a skilled identification skills, he would not have become a research clerk at the Palace Museum, and he would not have become a leader in the restoration and protection of bronzes and ancient bronzes in China.

Now that he said so surely, the identity of Daxia Zhenxing can be confirmed.

The girl from Xiao Zheng turned her head and asked Yang Jing in a low voice: "Is this Da Xia really happy?"

Yang Jing nodded and said, "I bought two money swords from Panjiayuan today, but the rust is very powerful, so I asked Mr. Liu to clean it up, but accidentally cleaned up a Daxia Zhenxing."

The other Xiao Zhao said, "How much did you buy this sword?"

"One thousand yuan."

"My God, your leak is really big! Now the authentic Daxia Zhenxing product has appeared in the auction four times. Except for the one in 2011 that was sold at a price of 1.01 million because of its bad appearance, the other three Daxia Zhenxing product have been sold at a price of more than 150 yuan."

Xiao Zheng next to him said: "That's right, Daxia Zhenxing appeared at the auction for the first time in 2004, and directly sold a high price of 1.657 million yuan. In addition, at the auction in 2010, a Daxia Zhenxing sold a high price of 2.02 million yuan, and the Daxia Zhenxing sold a high price of 2.25 million yuan in 2014! If you cleaned up your Daxia Zhenxing, your appearance would be good. If you were to take the auction, two hundred would be sure!"

"What are you talking about there? How can you just say something useless?" Old Liu suddenly shouted loudly, and Xiao Zheng and Xiao Zhao immediately shrank their necks and heads like quails.

"I always know how to think about those Adu items. These are all important treasures of the country. How can I measure them with money?" Mr. Liu scolded again.

When Yang Jing saw that the formation was not good, he quickly said to Shimi, "Old Liu, don't talk about them for now. Do you see if there are other treasures in the remaining copper coins? What if there is another Da Xia Zhenxing? If there is another Da Xia Zhenxing, I will give you one to hide it and play with it?"

Cai Yi said angrily: "Boy, where is mine?"

Yang Jing smiled and said, "Everything, all are there. As long as the remaining copper coins are still Daxia Zhenxing, you two elders hide each one and play with it!"

Then Mr. Liu turned to the sun and smiled and said, "You little Yang, you are so angry..."

As he said that, Mr. Liu carefully picked up a black ancient bronze coin on the desk, wiped it with a dry cloth, and began to brush it with a brush.

A few minutes later, Old Liu stopped the movements in his hand with a dull look on his face. Cai Yi looked at it and leaned over. As a result, after glanced at it, the master was stunned, as if he had seen something incredible.

Xiao Zheng and Xiao Zhao wanted to come over and take a look, but they were scolded by Mr. Liu just now, and they didn't dare to step forward.

Yang Jing didn't care. He smiled and looked up, and immediately shouted in surprise: "Damn it! Don't say that this is a big Qi Tongbao!"

After Yang Jing shouted out, not only Mr. Liu's office was in chaos, but also the workroom outside was in chaos.
Chapter completed!