The mechanism box is divided by the steps to open it. It is generally divided into six phases from one to six phases. There are six types of mechanism boxes. One phase of the mechanism box requires 36 steps to open, two phases require 72 steps, and so on. Six phases require 2304 steps. There are so many steps, not to mention the six phases, even the two-phase mechanism box is difficult to open without the formula. But even if there are formulas, the five-phase and six-phase switch boxes are not so easy to open without a certain amount of perseverance and brains. As for the legendary eight-phase switch box, it takes more than 9,000 steps, which is scary just thinking about it. After identification, the formula written on the paper has a total of one hundred and forty-four steps. The corresponding formula is a three-phase switch box. Moreover, with the switch box, it is also equipped with a key. This shows that the owner has a deep understanding of the contents of the switch box. Attention. Although there are instructions and keys to open the mechanism box, it is useless without the mechanism box. Now Chu Chen can only hope that the mechanism box is in the original owner's home of the inkstone, otherwise these two things will probably be of little use. Next, Chu Chen carefully put away the note and key, and then began to restore the inkstone. For ordinary people, it is probably an impossible task to restore the inkstone to its original appearance. However, for Chu Chen, an old disciple of Liu, although it is a bit complicated, it is not too difficult. In order to increase the weight of the inkstone, Chu Chen first poured some prepared lead into the cracks, and then after a series of treatments, he was busy until the early morning, and Chu Chen finally restored the inkstone to its original appearance. Looking at the almost perfect inkstone, Chu Chen nodded with satisfaction. Although there were still some small flaws, those flaws could be eliminated by using a special method and placing the inkstone in a cool place for a week. And Even if it comes in contact with water, it won't have any impact. The next day, Chu Chen called Lao Yu who sold him the Tianhuang seal and asked him if he was free today. If he was free, he would go over and help him dismantle the belly hall. Lao Yu was originally I planned to go out with my family today, but after receiving a call from Chu Chen, I happily agreed immediately. Speaking of this matter, Chu Chen was somewhat embarrassed. In fact, he had already learned how to dismantle the Du Zhongtang from Mr. Liu, but later he forgot about it. If it hadn't been for the association between the mechanism box and the Du Zhongtang yesterday , it is estimated that Lao Yu will forget about this matter in Java. It took Chu Chen half an hour to arrive at Lao Yu's home in Beicheng. ??????????? Lao Yu invited Chu Chen into his home, and he was very enthusiastic as he poured tea and brought fruits and snacks. After some pleasantries, Lao Yu took out the Buddha statue carved from rhinoceros horn. "It is relatively easy to open the belly hall, but it is not so easy to remove it. It took Chu Chen more than an hour to carefully take out the contents. Because the self-destruction device in the Du Zhongtang is very dangerous, Chu Chen also specially brought a container with dangerous goods. After returning, he would hand it over to professionals to handle it and then it could be completed. Seeing that Chu Chen had dismantled the belly hall, the old man breathed a sigh of relief. Although he knew that this thing should be quite stable and there would be no problems at ordinary times, he always felt that this thing was like a time bomb, always letting him go. He was worried. If Chu Chen hadn't called, Lao Yu would have been planning to call Chu Chen in the past few days. After finishing the business, Chu Chen originally planned to go home, but when he saw Lao Yu hesitating, he immediately guessed that he probably had something that he wanted to help identify. Anyway, nothing happened after returning home. Chu Chen smiled and said: "Lao Yu, it's rare to come to your house. I wonder if I will be lucky enough to appreciate your collection?" Hearing what Chu Chen said, Lao Yu also knew Chu Chen should have seen what he was thinking, which made him somewhat embarrassed, but even if Chu Chen said it, it was rare for him to come here once, so he quickly welcomed Chu Chen into his study. Because Lao Yu believed in Buddhism, he collected many large and small Buddha statues, including ceramics, wood carvings, gilded bronzes, etc. This made Chu Chen feel as if he had entered a small Buddhist hall. After admiring various Buddha statues, Old Yu took out a plum vase and put it on the desk. He said with a smile: "Mr. Chu, this is something I mortgaged from someone else. I'm not very proficient in porcelain." "I wonder if you can show it to me?" "Okay!" Chu Chen did not refuse and agreed readily. The plum vase is a bottle with a small mouth, short neck, broad shoulders, thin bottom and round feet. In modern times, Xu Zhiheng described the shape, characteristics and origin of the name of the plum vase in detail in his book "Yin Liu Zhai Shuo Porcelain": " The mouth of the plum bottle is thin, the neck is short, the shoulders are very broad, the shins are slightly narrow, and the feet are slightly full. The diameter is only as small as the thin bones of the plum.It is called plum bottle, hence the name plum bottle. ¡± The plum vase was originally a container for holding wine. The plum vase is beautiful, but its primary practical function is to store wine. In order to hold a large amount of wine without losing the beauty of a ¡°fair lady¡±, porcelain artists increased its largest diameter to The upper part of the plum vase is larger and the lower part is narrower. This makes it easier to pour during daily use. In order to keep the bottle stable. During the molding process, the lower part of the bottle is often cleverly thickened so that the base is thick and difficult to knock over, ensuring its practical function. Plum vase first appeared in the Tang Dynasty, became more popular during the Song and Liao dynasties, and many new varieties appeared. During the Song and Yuan Dynasties, porcelain kilns were produced all over the country. Among them, the blue and white plum vase from Jingdezhen in the Yuan Dynasty is the most exquisite. This plum vase is nearly 40 centimeters tall. In the scene, the colors are bright, the enamel is moist, and the carcass is white and delicate. There is also a "Made in the Qianlong Year of the Qing Dynasty" in the book. The carmine is commonly known as magenta. It is light rose and bright and transparent, but it is different from the previous imperial factory. The copper red and alum red used in porcelain are a kind of pink with a purple tint colored with gold. Because the glaze contains gold, it is often called "gold red". In fact, this kind of gold is melted into it. The method of in-glaze coloring was not invented by Jingdezhen porcelain workers, but by the Dutchman Cassia in 1650. It was applied to porcelain painting in 1680 and was not used in Jingdezhen until the 21st year of Kangxi. It was called "foreign" at that time. "Color", and this is also the reason why carmine is called magenta. After Chu Chen looked at the plum vase carefully, he said: "Old Yu, you are lucky. This is indeed a genuine item from the Qianlong period. Let's take a look first. As for the shape of the vessel, you can see that the shoulders of this plum vase are particularly plump, almost in a straight line, and the waist is straighter. This is a typical style during the Qianlong period. Look again, the font of this calligraphy is neat and elegant, the texture is white and fine, the enamel is also very moist, and the painting work is also very good. It is considered a rare fine product. " Hearing that this plum vase was a genuine one, Lao Yu was very happy, but he was still a bit confused, so he said: "Mr. Chu, there is one thing I can't figure out. Why is its hair color so carmine? Will it be deep or shallow? " "Haha, the phenomenon you mentioned was quite normal during the Qianlong period. "Chu Chen explained with a smile: "Although rouge was introduced to Jingdezhen Imperial Factory in the early and middle Kangxi period, due to its high technological content and high cost, it was not until the Qianlong period that it was widely used and carried forward in Imperial Factory. " "However, during the Qianlong period, in order to make the glaze of the products rich and moist, the glaze was blown many times, which resulted in a thicker glaze layer on the surface of the objects, and the glaze water flowed to varying degrees during firing. Therefore, the color of the rouge water often appeared in different shades. The hair color is uniform, so there are dark and light hair colors. " "Oh, that's it! "Lao Yu nodded knowingly, and then said with a smile: "Mr. Chu, you see it's almost dinner time, let's have a meal together? " "Bang bang bang! " Before Chu Chen could respond, he heard someone knocking on the door: "Lao Yu, are you at home? " Lao Yu apologized to Chu Chen, and then hurried out and opened the door. Seeing this, Chu Chen followed him out. " Old Hu, what's the matter? "Lao Yu opened the door and saw that it was an old friend of his. "Old Yu, let me tell you, I got a treasure to open your eyes. " The man said as if he was offering a treasure as he walked in. However, just halfway through, he saw Chu Chen coming out of the study and said a little embarrassedly: "Old Yu, you have a guest here. I'm so sorry. Did I bother you? " "It's okay, it's okay. I just want to see your baby. I just don't know if you mind? "Chu Chen smiled and waved his hands. Old Yu quickly introduced: "Lao Hu, this is Mr. Chu Chen, Mr. Liu's disciple. " "Liu Zhi and Mr. Liu? "Lao Hu asked in surprise. After receiving Lao Yu's affirmation, he said with great joy: "Today is really a coincidence. I didn't expect to meet Lao Liu's disciple. " With that said, he quickly put the things in his hands on the table, stepped forward to shake hands with Chu Chen enthusiastically, and introduced himself. After everyone chatted for a while, they turned their attention to the volume comparison on the table. The big brocade box. Lao Hu opened the box and carefully took out the contents. "The jar with red dragon pattern in the glaze?" "After seeing the objects in the box, Lao Yu asked. "Lao Hu smiled and said, "Hey, that's right, it's a jar with a red dragon pattern under the glaze. Lao Yu, guess what era it is from." " Old Yu said angrily: "I just took a look at it. How could I tell?Which era is it from? It can't be from the Yuan Dynasty, right? " "Ha ha! "Lao Hu laughed and said: "You guessed it right, it is from the Yuan Dynasty. " "What? ! ¡± As mentioned before, underglaze red is fired in a reducing atmosphere using copper as a coloring agent. If the temperature is slightly higher or lower, it will fail immediately. If the temperature is lower, the color will turn black. , very unsightly. If the temperature is high, the color will disappear. Generally, the allowed difference between high and low temperatures is only about ten degrees. In ancient times, this temperature difference was very difficult to control. Only experienced kiln workers could see it. Come out. (To be continued.)