In the next two days, Ao Muyang remained at the sea.

Professor Cao is a scientific researcher. After obtaining the water temperature distribution map, the overheating of the diver's body can be solved. They adjusted the heat dissipation ability of the diving suit and the researchers continued to go into the water.

Ao Muyang naturally had to follow him. As long as there were people under the water, he would never stay on the sea. He was so conscientious.

Maybe he was able to protect himself, maybe they were lucky, and the team did not encounter any problems under the water in the next two days, and everything went smoothly.

After the inspection, Professor Cao did not treat him badly. In addition to the previously agreed salary of 30,000 yuan, he also gave him a bonus of 5,000 yuan to thank him for his efforts in this inspection.

Ao Muyang reciprocates his favor and leaves Professor Cao and his group to stay in the village for a day. All food, drinks and accommodation are free, not to make money, but to make a few friends.

In addition, Professor Cao is a master in geological research in China. He doesn’t know how many newspapers and magazines they will publish in every year. If he mentions Longtou Village and introduces Longtou Village in the report in the future, it will be of great help to the village.

Longtou Village is applying for a turtle nature reserve, and the more people in the academic community help, the better.

Back in the village, Ao Muyang hosted a banquet to entertain Professor Cao. During the meal, he found Professor Li Ji to accompany him and then drank wine. He got a way to prevent marine cultural relics from rapidly oxidizing after they came out of the water.

This method is very simple, that is, spray antioxidants upwards and use water-soluble antioxidants to fight the ubiquitous air and the oxidation reactions brought about.

The antioxidant he chose was a glutathione solution, which was easier to obtain. Many fruit merchants would use it to spray fruits to slow down the ripening process of the fruit.

Lu Hu had enough connections. After he called and asked, someone mailed him a bottle by express delivery the next day.

After getting the glutathione solution, he finally opened two small boxes.

First, he scraped down the wax on the outside of the box. After years of seawater reaction, these waxes have deteriorated and become like jade, hard and beautiful, but unfortunately they are not worth the money.

After scraping off the wax, he sprayed a layer of glutathione solution on the box.

Then he opened a hole in the box. The box was made of wood. If it weren't for the layer of wax on it, it would have been soaked in sea water like those big wooden boxes.

Condensation wax is a good thing to preserve items in seawater. Under its protection, the small wooden box is still intact.

Then he sprayed some glutathione solution through the small hole, and then he opened the small box.

The box was light and destined to be without any gold, silver and jewelry. After Ao Muyang opened it, he saw that there were a few pieces of paper inside.

These papers are thick and dim, with blue-green fonts and patterns printed on them. The line of words on them are: Daqing Baochao!

Seeing this thing, Ao Muyang was happy. His hard work was not in vain. He finally got the cultural relics from the sea!

This is the Qing Dynasty treasure banknote, the Qing Dynasty paper currency, and it is definitely a cultural relic.

It can be seen that the shipwreck in the sea was sunk in the sea during the Qing Dynasty. He searched online and found that the Qing Dynasty treasure banknote he received came from the Xianfeng period, which read: 2,000-word Zhejiang tax invoices in the fifth year of Xianfeng.

Those who like Jin Yong's dramas are familiar with the Qing Dynasty Baochao. The most important trading role in "The Deer and the Cauldron" is it. At that time, Wei Xiaobao often took out large bills worth several thousand taels of silver, which was so rich.

In fact, it cannot stand the question. Ao Muyang read the online introduction that the banknotes released by the Qing Dynasty were not worth a lot of money. Their face value was already quite large, but they were only one or two silver taels.

According to the regulations of the Baochao Bureau of the Ministry of Revenue in the Qing Dynasty, one tael of silver in the official bill is worth 2,000 yuan in the treasure, and two thousand yuan in the treasure bill is worth 1,000 yuan in the silver, which is in parallel with the big money and the money...

However, it later depreciated due to excessive issuance, causing serious losses to the people. By the end of Xianfeng, this thing was almost waste paper. Later, in the first year of Tongzhi, the treasure money was even stopped.

This has resulted in a result. Baochao has been used for a short time and has been stored in the market for a short time. Today, they have become very rare, so they are of high value in the modern collection market.

There are relevant auction records online. Last year, a treasure note appeared at the Christie's Spring Auction in Hong Kong. It was specifically the "Five Hundred-Trade Tax Invoice of the Qing Dynasty in the Second Year of Xianfeng" and it sold a high price of 200,000 yuan.

Ao Muyang counted and found that there were eight such bills in the first small box, which were about one million and six million.

One million and six hundred thousand is not much, but it is nothing to his value, but this thing can be seen in the world. He can openly take out this money for consumption, unlike the cash obtained by selling eunuchs’ treasures that have to be hidden.

With joy, he opened another box and prepared to collect another batch of Qing Dynasty treasure banknotes, and another batch of RMB.

This box is heavier, at least twice as heavy as the previous box. Obviously, there are more Qing Dynasty treasure money in it, no, more RMB.

As a result, he was disappointed when the box opened. There were no banknotes in the small box, and there were no envelopes inside!

When I opened the kraft paper envelope, there was crispy rice paper inside, because Ao Muyang was not ready to prevent oxidation, and after pulling it out, it quickly began to become fragile.

The rice paper was full of words, and the handwriting was already unclear. Ao Muyang carefully identified it and recognized that it might be a letter from home.

The reason is that stamps are posted on the cowhide envelopes. Some stamps are yellow and some are green, some are large and some are small. No matter what, they have the words "The Post Office of the Qing Dynasty" and the marks of one cent silver and five cent silver.

Most of the words in the letters in the family can’t be seen clearly. Only the beginning title is heavy and the parents’ title can be seen. Such things are not worth much even if they are left by celebrities.

Moreover, Ao Muyang felt that this book did not come from the hands of a celebrity, but should have been left by the captain or the first mate, otherwise it would not appear in the cockpit.

He stuffed the kraft paper back into the envelope and kept it together with the Daqing Baochao. The letter paper was not processed, while the Daqing Baochao carefully sprayed a layer of antioxidant.

At least he had a harvest of about 1.6 million yuan, and Ao Muyang was quite satisfied. He then took a photo of the Qing Dynasty treasure banknote and sent it to Mr. Cheng Deming, wanting to ask him about the value of the treasure banknote.

The old man often flies around China. As a collector, he has to attend auctions everywhere, private collection tastings everywhere, and cooperate with the government and universities to identify some unearthed cultural relics.
Chapter completed!