Chapter seven hundred and forty-eight is amazing, hard to prevent
Chen Wenzhe was able to see the majesty and magnificence of ancient bronzes.
Compared to his three pieces, this one is so good.
Although you can now take a look at his three bronze vessels, when you first saw them, they were so miserable that they couldn't be compared with what was in front of you!
However, when you see such an exquisite and magnificent bronze vessel, you should pay more attention.
With the popularity of the collection market, the price of domestic bronzes has skyrocketed in recent years.
Bronze wares that were smuggled out of the country in the past are now being returned continuously.
But on the other hand, due to the production conditions and uncomplicated processes required for counterfeiting, imitation of antique bronze has become a means for some unscrupulous people to make huge profits.
New counterfeiting techniques such as transplantation and splicing are also emerging one after another, making it difficult for collectors to guard against them.
The number of antique bronze wares is also breathtaking.
Regardless of antique shops or small street stalls, you can see fake bronzes almost wherever there are antiques.
Therefore, some people joked that if the fake bronzes flooding the antique market and the hands of collectors were collected, enough to build two bronze aircraft carriers.
This is not an exaggeration at all, so after seeing this beautiful bronze vessel, Chen Wenzhe immediately became wary of Laman!
After a sudden look, he didn't find any problem.
At this time, Chen Wenzhe was even more vigilant. He calmed down and looked at the overall shape again.
He was using his extraordinary memory to compare and see if any bronzes of this type had ever been unearthed in China.
If it has been unearthed in China and it is confirmed that it is not this one, then this one is probably fake.
Since the production of bronze wares during the Xia, Shang and Zhou dynasties was the same, there was not much change. They were all made from pottery molds, one for each mold, and made by hand.
In this way, the same pottery models cannot be cast, so there are no identical bronze shapes in the Western Zhou Dynasty.
If there are, one of them must be a fake, or both of them are fake.
Of course, this is not absolute. There are many practical appliances with the same model.
For example, the Ti Liang Yao has the same shape but different decorations, which is quite normal.
After careful comparison for a while, I did not find that the same bronze vessel had been produced before, so this bronze vessel can still be taken for a look.
The first thing to look at must be the decorations. Looking at the decorations, since they are also cast in pottery models, and each model is a different vessel, there are almost no bronzes with exactly the same decorations or inscriptions.
Except for a few objects cast from a single mold, they all have the same decoration, but such decoration was rare in the Shang Dynasty.
"This thing opens the door so wide. I really don't believe it. Who can see what's wrong with it?"
Just when Chen Wenzhe started watching, an old man gave birth to a son again.
Chen Wenzhe didn't even raise his head. He had to concentrate on appraising things and never be disturbed by others.
If this old man is not the owner of the treasure, he may be a stakeholder.
Their words can be regarded as farts, and even seniors in the antique appraisal industry cannot believe them!
In the face of interests, some people would even dare to cheat their biological parents, let alone a company or colleagues?
To identify bronzes, just look at a few characteristics.
With previous experience, Chen Wenzhe saw quickly.
The shape of the vessel, the rust color, the patterns, etc., actually don’t need to be looked at too carefully.
Because it can come to their eyes, it means that this thing has been looked at several times.
If a low-level mistake had been made, it would definitely not be in front of this group of people now.
Therefore, if you want to see it, it must be regarded as fake traces, even the casting process.
Of course, I started with the easy things before, such as taking a look to see if the rust color is real!
This is relatively simple. The easiest thing is to take a piece and try it.
Alum and borax are both soluble substances. If the copper rust is transparent crystal rust, you can remove a piece and put it in hot water.
If it can dissolve when exposed to water, it may be these kinds of fake rust.
Some people also advocate using your tongue to taste the taste of bronze rust.
The taste of alum is very astringent, and other crystalline pseudorusts are sometimes bitter or salty.
Real patina, on the other hand, has almost no smell.
Chen Wenzhe would not do this, because some fake rust is poisonous, so it is best not to use this method of tasting.
There are also some simple methods that can make identification quickly, such as spraying water on the copper rust and observing the hydrophilicity of the copper rust.
Patina is hydrophilic, while those using paint and glue are less hydrophilic.
Obviously, even if it is old-fashioned, it is impossible to use such low-level methods.
Therefore, when Chen Wenzhe saw the magnifying glass on the table, he picked it up without hesitation.
If possible, be sure to use a magnifying glass or microscope to observe the crystalline form and growth state of copper rust.
At this time, it is easy to find that there is a big difference between new patina and old patina.
"I think it's a waste of time. You have done scientific testing and several rounds of manual identification. When will the identification be completed?"
Just when Chen Wenzhe wanted to see the casting process, the old man interrupted his thoughts again.
Chen Wenzhe looked at the old man and found that he was taking pictures of a test report.
"Can I take a look?"
"Look, let me see what you can identify!"
As he said that, the old man threw some documents directly to Chen Wenzhe.
Looking at the scattered documents, Chen Wenzhe smiled disapprovingly.
The more he is disturbed by others, the more careful he has to be, because it is possible that the treasure owner has a guilty conscience, or is he walking on the right path?
Chen Wenzhe took a look at the report, which contained ingredient identification.
If it were originally, he really couldn't understand this thing, but now, he understands it very well.
Casting is not something ordinary people can do.
Chen Wenzhe also made great efforts to imitate the Jingyun Bell.
Therefore, he knew the specific alloy formula of Shang Dynasty bronzes, and even knew that it might be a copper-iron alloy, not just a copper-tin alloy!
This bronze vessel from the late Shang Dynasty contains iron inside and has obvious traces of artificial iron smelting, which is quite interesting.
If this bronze is an imitation, then the person who imitated it must be a master.
From the combined casting of copper and iron, we can also see whether many bronzes are the product of forgery.
Those who can avoid this flaw must have a good understanding of ancient bronzes.
Judging from many characteristics of this bronze vessel, it dates back to the Shang Dynasty and is probably a product of the late Shang Dynasty.
New materials found in modern archaeological discoveries prove that in the late Shang Dynasty and the early and middle Western Zhou Dynasty, the iron used in such copper-iron combined castings was meteoric iron. So when did artificial iron smelting appear?
This is a very important time estimation issue, because as long as this time is determined, we can know when from the late Shang Dynasty to when meteorite iron and copper materials were combined to form an instrument.
And when did artificial iron smelting and copper combiners exist?