After laughing for a while, Chu Yulan saw what Chu Chen put on the table, so she asked curiously, "Brother, have you bought any good things again?" ”

Chu Chen smiled: "It's all some gadgets, but there are two things that are really good!" ”

"Oh! What is it? "Everyone turned their attention.

Chu Chen smiled and took out the little Arhat statue and the three things and put them on the table.

Everyone can see that the Arhat statue is indeed a rare boutique, but the other three things have rusty surfaces and don't look like they are sold at all, and they are shaped like a small fish, except for Liu Sizhe, no one else can see what this thing is.

Dong Fatzi looked at the three things, and then said, "Brother Chu, if you want to say that this Arhat is really good, but what are these three things?" ”

"These three are all talismans of the Tang Dynasty." Chu Chen replied.

"Ahh Is this an ancient tiger talisman? Tong Hangqi asked in surprise.

Liu Sizhe said with a smile: "You are really uneducated, can the military talisman of the Tang Dynasty be called a tiger talisman?" Where does this thing look like a tiger, it's obviously a fish talisman, is it good! ”

Tong Hangqi scratched his head with a smile and asked, "I see that the Qin and Han dynasties were all tiger talismans, why did they become fish talismans in the Tang Dynasty?" ”

Liu Sizhe explained: "The rabbit located behind the tiger in the zodiac is used instead, which is called the silver rabbit charm. Soon after, the fish charm was used again. Some speculate that this may be due to the homonym between the "carp" of carp and the surname Li. ……”

After Wu Zetian became the dynasty, she changed the fish charm to the "turtle symbol", and it was restored to the fish charm during the Zhongzong period.

Fish charms are generally about 6 cm long. It is about 2 cm wide. There is a round hole in the head that can be tied with a rope. It is divided into two halves of left and right, and there is a "same" glyph mortise and tenon in the middle to fit.

Some of the fish charms also have the word "contract" engraved in the middle of the bottom side. When separated, there are only half-edges on each half-side. Together, the word "contract" is complete, so it is also called "contract".

Now sign the contract, in duplicate, with a seal in the middle, and each party holds a voucher. Such credentials are collectively referred to as "Contracts". The word "contract" is derived from the fish symbol. ”

There is an inscription on the inside of the fish charm, indicating the identity of the person who wears the charm or the scope of use of the fish charm. According to the "Six Classics of the Tang Dynasty", the prince used a jade fish talisman, the prince used a gold fish talisman, and the general officials used a bronze fish talisman. Most of the fish talismans that have been handed down and found in archaeology are made of copper.

After listening to Liu Sizhe's explanation, Tong Hangqi and others who didn't know what the fish talisman was before. Only then did I understand what was going on.

Wen Yuting said suddenly: "It turns out that the word 'contract' came from this way, but how can the three fish talismans be together?" It's hard to be buried together! ”

"Of course not buried together." Chu Chen said with a smile: "These three fish talismans should all be unearthed artifacts, and they should have been unearthed for a while, but the rust of these three fish talismans can be seen that they did not come out of a pit." ”

Everyone nodded, and Chu Yulan said, "Brother, since you said it was a good thing, these three fish talismans shouldn't be ordinary, right?" ”

Chu Chen spread his hands: "I really don't know who used these three fish talismans, but I can guarantee that one of them is a good thing." You'll find out which one you want to know. ”

Hearing Chu Chen say this, Liu Sizhe and the others hurriedly stepped forward to weigh the weight, as for Chu Yulan and them. I feel that things are too dirty and don't want to do anything.

Looking at the appearance, the three fish talismans are really not good-looking. But if you weigh it, you can clearly see the difference. Liu Sizhe held a fish talisman with black, blue, and brown lumps of rust in addition to patina. said excitedly: "This is a goldfish charm, it must be a goldfish charm!" ”

Gold of the same size is almost 1.17 times heavier than copper, so the difference between the two is quite large, and if you know these three things, you can know the mystery as long as you think about it a little.

However, Shi Pao Pi doesn't know much about antiques, and he doesn't know what a fish talisman is, plus these three fish talismans are all rust, and the appearance is too ugly, Shi Pao Pi didn't pay attention to it, and others probably didn't look at it, so it was cheaper Chu Chen.

Because they were in Xiangjiang before, after listening to Chu Chen's explanation, Liu Sizhe and Wang Xiaoyue were not surprised that there would be rust on the gold, while others felt a little incredible.

Su Jinning said: "Brother Chu, this goldfish talisman is not pure gold, but an alloy, right?" ”

Chu Chen explained the reason with a smile, and everyone understood.

"And how does the rust get out of here?" Su Jinning asked again.

"I've heard that you can remove patina with a soft cloth dipped in vinegar and gently wipe it, and the effect is not bad." Wang Xiaoyue said.

Chu Chen shook his head: "If it's just patina, it's a good way, but it's not so easy to remove the rust on this goldfish talisman except for the rust." ”

Liu Sizhe picked up the fish talisman and observed it carefully, and then said:

"It is highly probable that these rusts were deposited on the surface of the gold objects by the silver and bronze objects in the tomb in contact with other substances in the tomb, and because of the high sulfur content in the tomb, I speculate that these rusts must have been metal sulfides, such as copper sulfide and silver sulfide. Copper sulfide and silver sulfide are extremely insoluble substances, so it is difficult to remove these sulfides with ordinary acid-alkali or solvent-based cleaning agents. ”

Hearing this, Dong Fatzi asked, "Then what should I do, do you use mechanical tools to remove it directly?" ”

"You pig brain!" Su Jinning said angrily: "This is gold, if you use mechanical tools to remove these rusts, won't it cause harm to the artifact itself?" ”

Dong Fatzi spread his hands and said: "You can't use cleaning agents or tools, can't you keep it as it is?" How ugly this is! ”

Chu Chen said with a smile: "Dong Fatzi, you must not have learned chemistry very well, don't you know that sulfide can be oxidized into elemental sulfur from the sulfur ions produced in the dissolution reaction under the condition that the oxidant is stored in the zài, so that the dissolution balance is destroyed, and the dissolution reaction continues to continue, and finally all of them are dissolved." ”

"As we all know, gold is a very corrosion-resistant material, and it reacts chemically with other substances, and only the extremely corrosive aqua regia can dissolve gold. I have already done that the use of the oxidizing agent hydrogen peroxide, and the addition of appropriate other additives, can effectively remove this rust without any damage to the gold jewelry. ”

Dong Fatzi scratched his head and laughed a few times: "I'm really not good at chemistry, if it weren't for the fact that chemistry was dragging my feet, I wouldn't have to keep letting my family Ning Ning laugh at me with the original college entrance examination results!" ”

"Cut!" Su Jinning sneered: "You didn't do well in the exam yourself, and you are not allowed to let me take it out and talk about it?" ”

"Then you don't have to talk about it all the time!" Dong Fatzi muttered.

Su Jinning sneered: "I just have to say it often, and if you have any subjects with worse grades than me in the future, I will often take it out and say, do you have any opinions?!" ”

Dong Fatzi said with a bitter face: "No, I have no opinion!" ”

Everyone laughed secretly when they saw Dong Fatzi's declining face, and after a while, Chu Yulan said, "Brother, then let's remove the rust on it now?" ”

Chu Chen shook his head: "No, there will be an auction later, I'll leave this thing to Brother Zhou and them to deal with, let's take a look at what kind of text is written in the fish talisman now." ”

In fact, the fish charm is still very easy to open, and the reason why it is put together is also because of the relationship between rust. Chu Chen carefully used a tool to remove the rust from the gap in the middle of the fish talisman, and in the end, the two halves of the fish talisman were naturally separated.

The color and surface of the fish charm are different, and it looks golden, and it can be clearly seen that its material is indeed gold.

The fish symbol uses the mortise and tenon in the shape of the character "Tong", and the name and status of the user are written below the character "Tong".

Everyone hurriedly stepped forward to take a look, and they were immediately a little surprised, because this fish talisman was used by Li Yong, the thirteenth son of Tang Xuanzong Li Longji.

According to historical records, during the An Lushan Rebellion, he was named the governor of Shu County, and when he led the generals to cross the Mianzhou River, he boarded the boat and saw the color mat as a carpet, so he ordered people to withdraw.

Moreover, at that time, Li Jianchu was ordered, because the matter was in a hurry and did not receive the festival, Sima Shiben of Mianzhou said that he wanted people to arrange the festival "pioneer road, enough to deter the public".

Li Jian laughed and said: "I am the real king, what else do I use to fake the festival?" ”

However, this Li Jian didn't know whether he had no eyesight or was a little arrogant, and when he arrived in Shudu, Cui Yuan, the favorite of Tang Xuanzong, came to greet him and worshiped Li Jin's horse.

Li Jin didn't stop it, so Cui Yuan was furious. Although, after Xuanzong arrived in Chengdu, Li Jian was in charge for two months, and the people were stable. But later he was played by Cui Yuan and stayed in the inner house.

As for the reason, whether it is because Li Jian really did something wrong, or Cui Yuan has a grudge because of what he greeted, that is, the benevolent see the benevolent, and the wise see the wise.

Everyone was surprised to see that this goldfish talisman was actually used by Tang Xuanzong's son, and Chu Yulan asked after reading it: "Brother, is this fish talisman worth much?" ”

Chu Chen said with a smile: "The Tang Dynasty fish talisman we see now is generally a copper fish talisman, and the gold one is very rare, and this fish talisman is very well preserved, which is even more rare." However, because this kind of thing is rare, there is basically no such thing on the market, and I have never seen this kind of fish charm before, so the specific value of this is really not easy to say. However, I collect it anyway, and I won't sell it, so I don't care too much about the market value. ”

Everyone nodded in agreement.

This fish talisman is actually nothing good to look at for Chu Yulan and the others, and the fish talisman is still full of rust, and they are all interested in it after looking at it for a while.

Looking at the time, it was almost a little later, and Liu Sizhe said, "Brother Chen, let's go to the auction now!" ”

"Okay!" Chu Chen nodded, and then said, "Actually, there aren't many wool materials in today's auction, so it's better for you to go to the store to pick wool." (To be continued......)