Yang Sihai urged Yu Yao to go to the Special Investigation Bureau to negotiate the clues of the jade seal of the country, and Yu Yao took the opportunity to ask if there were any new clues about Teng Kunwu.

"Not yet, I think it's better for you to meet and talk. I happen to be free today, you have a meal here at noon, don't you praise the big buns in our canteen?"

Yu Yao thought about it and agreed.

When they arrived at the Special Investigation Bureau in the deep mountains on the outskirts of Beijing, Yang Sihai and Yang Rui greeted Yu Yao together, and the three of them then sat in Yang Sihai's office.

When Yang Rui saw Yu Yao, he squeezed his eyebrows and said, "Do you remember the clues from last time?

"Huh?" Yu Yao thought to himself, the last time Yang Rui went to Jiangzhou, he still helped Grandma Wang ask. Here, it is a clue that the bandit king Ziquan during the Republic of China once got the "jade seal of the country".

Said Cao Cao, Cao Cao arrived. Before Yu Yao could continue to ask, Wu Chen pushed the door and came in, holding in his hand the box inlaid with purple and gold fonts that Yu Yao saw last time.

Yang Rui's temperament is more outgoing, and Wu Chen is more elegant and introverted, but Wu Chen hasn't seen Yu Yao for a long time, and after meeting, he put down the box and gave a hug first.

"Come on, take a look first. Wu Chen pointed to the box.

Yu Yao was not polite, opened it and saw that there was really a jade seal inside!

The atmosphere is dignified, the five dragon buttons are engraved, and the bird seal engraved with "ordered by the day is both longevity and Yongchang".

However, this jade quality ······

Yu Yao frowned, "This is different from what we deduced before, and the jade quality of the little jade man and the small seal is different - this is Dushan jade!"

The color of this Dushan jade's "heirloom jade seal" is quite special, similar to the color of the little jade man and the small seal, the whole body is blue and white, but slightly green.

Dushan jade is one of the four famous jade in China, one of the biggest characteristics is that it is rich in color, basically all colors are available; however, such a large piece is uniform blue and white, and it seems to have a certain oiliness, it is really rare.

Wu Chen nodded, "I didn't say this is true. However, this is the heirloom jade seal that Wang Ziquan got back then. Let's take a look at the vintage!"

Yu Yao glanced at Dushan Yu just now, and he really didn't look at the year carefully, so he started to examine it carefully, and asked at the same time, "What do the leaders think?"

Wu Chen responded, "I can see Qin Han!"

Yang Rui is very conceited in jade, whether it is the mainstream jade species in China or Burmese jadeite, and often gambles on stones; he waved his hand, "I have different views with Lao Wu, I think at most to Song." ”

Yu Yao looked at Yang Sihai again, but Yang Sihai said, "I'm not good at this." I only know that Dushan jade mining has a long history, not to mention far away, there are a lot of Dushan jade pieces unearthed in Yinxu, which is a sure thing. ”

In fact, in the big saying that "the jade seal of the country is carved from He's bi", there are also many arguments about the material of He's bi, Lantian jade, Dushan jade, and even Hetian jade.

The origin of Dushan jade is in Nanyang, and Nanyang is relatively close to the "Jingshan" where Heshibi was found, at least much closer than Lantian and Hetian.

However, Yu Yao had basically reached a consensus with the Special Investigation Bureau before, the jade seal of the heirloom should be carved from He's bi, and the jade species, neither Lantian jade nor Dushan jade, should be a special and independent jade species.

At the same time, if the material of the jade seal of the Heshi Bi heirloom is the same as the material of the little jade man and the small seal they found before, or that the little jade man and the small seal are made of the leftover materials for making the heirloom jade seal, then the Special Investigation Bureau has already done a test, this is a "visitor from the sky", that is, "meteorite jade".

Of course, before the physical object of the jade seal of the country is finalized, it cannot be 100% certain that the jade seal of the country is the material of the little jade person and the small seal.

"In my opinion, it is indeed from the Song Dynasty, and it should be from the Northern Song Dynasty. Yu Yao finally gave his opinion.

Yang Rui was slightly proud, "Just looking at this craft style, it shouldn't be able to reach Han." ”

Wu Chen didn't respond immediately, picked up Yang Sihai's white leather special cigarettes, borrowed flowers and offered Buddhas, and lit the cigarette before saying: "But this bag of pulp is extraordinarily thick, and it is more dignified and atmospheric than the craftsmanship of the Song Dynasty." ”

Yu Yaoying said, "The pulp is indeed thick, but the main component of Dushan jade is 'altered gabbro', which is harder than nephrite, and the pulping effect is different." This craft style, from the overall point of view, is indeed very dignified atmosphere, the dragon head and dragon body shape of the button, is also the style of the Qin and Han dynasties; however, the posture of this dragon is somewhat elegant, and faintly reveals a smart style, more like the Song Dynasty. ”

Yu Yao said, looking at Wu Chen, "I think this 'heirloom jade seal' should be deliberately imitated by the Song people, so it is not easy to identify." ”

"Is there any other basis?" Wu Chen asked.

"And this missing corner. ”

This "heirloom jade seal" is also a missing corner.

Yu Yao held the "Heirloom Jade Seal" to welcome the light, "In this place, you can faintly see the characteristics of knife marks; ”

Wu Chen picked up the magnifying glass and stepped forward to take a closer look, Yu Yaoshun pointed to the direction of a small crack on the edge.

"Completely ruled out!" Wu Chen finally nodded, "From this, it is concluded that the heirloom jade seal obtained by Wang Ziquan is an imitation of the Song Dynasty!"

"How did you get it?" asked Yu Yao.

"It's also more accidental. Wu Chen briefly introduced, "I went to the northern Henan area controlled by Wang Ziquan to investigate, and met the local cultural department to re-identify a land temple in the Ming Dynasty. This land temple is in disrepair, and a hole was made by rats under the base of the altar, which was connected to the place where the 'heirloom jade seal' was hidden. I will not go into detail about the process of further corroboration. ”

Yu Yao nodded, "It seems that Wang Ziquan hid it when he fled from northern Henan. He also played a golden cicada shell, and separated the box from the jade seal!"

"This old boy, when he fled, he probably still wanted to be the emperor's Spring and Autumn dream!" Yang Rui pouted.

Wu Chen lit another cigarette, "Also, during this visit, in addition to northern Henan, I also traveled a lot of places, and I also had other clues." ”

Yang Sihai nodded slightly. Judging from Yang Rui's expression, he didn't know this, it seemed that Wu Chen only said it to Yang Sihai, and now he wants to say it to Yu Yao and Yang Rui, and Yang Sihai must approve it.

"Since the fall of the Manchu Qing Dynasty, during the Republic of China, regarding the jade seal of the country, whether it is a warlord from all walks of life or a private master, it can be said that there has once again been a hot undercurrent. Wu Chen first foreshadowed it.

"This time, I got a new clue: in the undercurrent of that year, there were three suspicious things about the jade seal of the country!" Wu Chen continued, "One is the thing in front of us, which was obtained by the bandit king of northern Henan;