"Xiao Shen, why do you say that? Did you see something?" Old Song wiped the tea from his mouth and asked anxiously.
"Uncle Song, look at the openings of this shelf. Are they all about the same size?"
Lao Song picked up the pen holder and looked at it over and over for dozens of seconds, then nodded: "If you don't tell me, I really didn't notice it. It's really true. Why are the films about the same size?"
"Porcelain with patterns is called cracking. Flaking is a natural cracking phenomenon on the glaze of porcelain. When the expansion coefficients of the embryo of the porcelain and the glaze are different, cracks will occur.
"There is another type of opening. Porcelain will have cow hair and caviar patterns after thousands of years. Of course, it is not the opening of Ge Kiln.
"It was impossible to master the opening of slices at first. Some people said that this technique could be completely mastered when it was first fired in Ge kiln, while others said that it was only mastered by the Zhang brothers later.
"But it is certain that the porcelain after the Ge kiln can be opened manually, that is, before the porcelain comes out of the kiln, the kiln door is quickly opened to allow the porcelain to cool suddenly.
"Because the temperature inside the kiln changes from extremely hot to cold, the glaze will shrink rapidly, while the internal porcelain body will cool much slower than the glaze because it is inside.
"In this way, the different internal and external forces will produce large open tablets. After several chemical ingredients processes, the product can be similar to the natural open tablets.
"The openings of this pen holder are the same size. I think there are two possibilities. First, this is a flaw deliberately exposed by the forger.
"The second is that this is indeed a miraculous natural cracking during firing, but among the split porcelain from Ge Kiln handed down from generation to generation, I have never heard of any split pieces of similar size.
"Of course, this is just a doubt and cannot be used as the final basis for identification.
"The most important thing is that this porcelain has no nails." Shen Yu felt thirsty and picked up the teacup and took a sip.
"What is a support nail?" Lao Song was stunned.
Shen Yu was also stunned, "You don't know about the support nail?"
"I really don't know." Lao Song shook his head and said frankly.
After thinking about it, Shen Yu walked out of the reception room and took out a Ru kiln azure-glazed sunflower-washed high-imitation porcelain from the shelf. Then he returned to the reception room and explained to Lao Song: "Uncle Song, look, this bottom-washed porcelain
These small dots are the traces left by the support nails."
Old Song nodded as if he understood something: "Tell me in detail."
Seeing Old Song's expression, Shen Yu was very happy. Uncle Song's mentality of collecting things was simply... Shen Yu couldn't describe it. He was so proficient in everything that he could see it as if it were nothing.
"Fine porcelain will give people a smooth and jade-like feeling. The reason is that it is glazed. If it is not glazed, the porcelain body will be very rough.
"In ancient times, if fully glazed porcelain was fired directly into the kiln, the porcelain would stick to the kiln, making it impossible to remove it, or the base would be damaged when removed."
"What's the reason for this?" Lao Song immediately asked his doubts.
Shen Yu was silent for a few seconds, and then organized his words, hoping to explain the matter in the simplest words, "Because the layer of glaze hanging on the porcelain will melt after being fired in the kiln and reaches a certain temperature, and then become a similar It is a liquid substance, and it has a certain fluidity.
"Let's put it this way, melted glaze is as sticky as sugar syrup. When it cools, it sticks to everything it comes in contact with."
Seeing that Lao Song still didn't understand, Shen Yu took out two more small blue and white bowls from the ancient shelf, "Suppose these are two bowls that are about to be fired in the kiln. If we stack them together and bake them, they will be the same after they come out of the kiln. Not two bowls, but two pieces of scrap porcelain stuck together and inseparable."
Lao Song suddenly realized, "Xiao Shen, I understand what you are saying. What you mean is that the glaze on the outside of the bowl seems non-stick now, but under high temperature it can not only stick to itself, but also stick to others. ”
Shen Yu breathed a sigh of relief: "That's what it means, so most of the porcelain before the Song Dynasty only had glaze on the body, and most of the bases were unglazed.
"Then a problem arises. Without glaze on the bottom of the porcelain, the whole porcelain will look rough and unsightly. Later, in order to make the bottom of the porcelain glaze hang and prevent it from sticking, people invented the braised porcelain.
"Branch firing, also known as nail firing, with this technology, when the porcelain with the bottom full of glaze is stacked and fired, it can protect the glaze very well.
"This method is not complicated at all. It just uses a few earthen nails or iron rafts to separate the top and bottom of the porcelain. Therefore, porcelain fired with support nails will leave traces of the support nails on the bottom after firing.
"Of course, the glaze is also glued with support nails, but the area of the support nails is very small after all. After leaving the kiln, you can just knock them down with something.
"Some say this firing method was invented by the wood kiln, some say it was invented in the Ru kiln of the Song Dynasty, and some say it existed before the Tang Dynasty.
"The emperors of the Song Dynasty liked to pursue perfection. The Ru kiln has the smallest nail marks, also called sesame nails, which means they are about the size of sesame seeds, close to none.
"The nail marks on the Ge kiln are generally slightly larger and iron-black in color.
"The bottom of this pen holder is fully glazed but there are no supporting nails. I don't think it is a piece of porcelain handed down from Ge Kiln. It is probably a modern high imitation.
"Of course, I just said that it is not very real, and I can't tell whether it is a fake or not. You'd better ask a knowledgeable craftsman to take a look again, or if you just want to collect it, this pen holder is perfect enough."< /p>
Shen Yu thought it would be better to leave some hope for Lao Song. To be honest, at over 70 years old, collecting is just a hobby. If you don’t sell real porcelain and high-quality imitations just for collecting and playing, this pen holder is really enough. .
You must tell him that this is a fake. You spent 400,000 yuan to buy a fake, which may not be a good choice.
Unexpectedly, Lao Song sighed, "Xiao Shen, when you say that, it's not untrue. This is high-grade imitation porcelain!
"I originally thought of picking up a big leak, but I accidentally missed it again. It seems that my reputation as a money-splitting man cannot be lost."
After saying that, Lao Song laughed at himself, not feeling too disappointed.
"Uncle Song, did you buy your rosewood bookcase and this Ge Kiln penholder at the same place?"
Old Song nodded and shook his head: "It's the same place, both in Zhuangyuan Town, but it's not the same family. The one who buys the boxes is one family, and the one who buys the pen holder is another family."
Zhuangyuan Town is a town in Guanxian County, one of the counties under the jurisdiction of Chuzhou. It is not close to Chuzhou, but it is very close to Chen County. Because there were many literati in ancient times, there are many old houses. Go there to find old houses.
There are many collectors of the house.
There are some genuine antique sellers there, but there are also a lot of scammers. Many times, scammers rent an ancient house to deceive collectors who come from out of town to hunt for treasures.
Even local collectors often look at it. For example, Xu Duofu was cheated, and Lin Xifeng also bought the Cheng Feng Yu Mu Gui Tu brush holder in Zhuangyuan Town, which can be regarded as eye-catching.
"By the way, I remembered it. When I bought this shelf, the man refused to give up the price, so I forced him to give me a calligraphy and painting. The calligraphy and painting looked pretty good to me. It was probably a famous artist in ancient times.
It’s an authentic work. Don’t worry about anything. Xiao Shen, can you also help me take a look?”
Shen Yu nodded: "No problem."
Looking at paintings is not troublesome for Shen Yu, but Shen Yu doesn't have any hope in his heart. The other party is obviously playing a trick, maybe it's a rented house, where is the original painting from?
"Uncle Song, let's go outside and take a look." Taking the scroll painting from Old Song's hand, Shen Yu said with a smile.
"Okay!"
Lao Song was not polite and walked out of the reception room with his hands behind his back.
It's just that Shen Yu didn't follow him out immediately, because just now, a dark blue treasure light as big as a pebble emerged from the painted sky and earth pole, and with lightning speed, it penetrated into the palm of his right hand and disappeared.
