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

Professor Cao is a scientific research maniac, and after obtaining the water temperature distribution map, the divers' overheating situation can be solved, they adjust the heat dissipation capacity of the diving suit, and the researchers continue to enter the water.

Ao Muyang naturally has to follow along, as long as there are people underwater, then he will never stay on the sea, that is called a dutiful duty.

It may be that he protected it well, or it may be that they were lucky, and the team did not encounter any problems underwater for 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 dedication in this inspection activity.

Ao Muyang reciprocated, leaving Professor Cao and his party to live in the village for a day, eating, drinking and lodging for free, not to make money, just to make a few friends.

In addition, Professor Cao is a master of geological research in China, and he does not know how many reports to publish in many newspapers and periodicals every year, and 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 bidding for a nature reserve for sea turtles, and the more people in academia can help them speak, the better.

Back in the village, Ao Muyang set up a banquet to entertain Professor Cao, during the banquet he found Professor Li Ji to accompany him, and then drank wine, he got a way to prevent the rapid oxidation of marine cultural relics after coming out of the water from the mouths of two knowledgeable old professors.

The solution is simple, which is to spray antioxidants upwards and use water-soluble antioxidants to fight the ubiquitous air and the oxidation reactions it brings.

The antioxidant he chose was glutathione solution, which is easier to obtain and is used by many fruit traders to spray fruit to slow down the ripening process.

Land Rover is well-connected, and after he called to ask, someone mailed him a bottle by courier the next day.

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

First of all, he scraped off the wax on the outside of the box, which had deteriorated after years of reaction in seawater, and became jade-like, hard and beautiful, but unfortunately worthless.

After scraping off the wax, he sprayed the box with a glutathione solution.

Then he made a hole in the box, which was made of wood, and if it hadn't been for a layer of wax on the outside, it would have been soaked in the sea like those large wooden boxes.

Condensation wax is a good thing to keep things in seawater, and under its protection, the small wooden box is still intact.

He then sprayed some glutathione solution through the small hole, and only then did he open the small box.

The box was light and fluttering, destined to have no gold and silver jewelry in it, Ao Muyang opened it and saw that there were a few pieces of paper inside.

The paper was heavy and dim, with blue-green fonts and patterns printed on them, with a horizontal line reading: Daqing Treasure Banknote!

Seeing this thing, Ao Muyang was happy, and his hard work was not in vain, and he finally got the cultural relics from the sea!

This is the treasure banknote of the Qing Dynasty, the paper money of the Qing Dynasty, which 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 checked on the Internet, and the Qing Dynasty treasure banknote he got in his hand came from the Xianfeng period, which read: Xianfeng five years of the Qing Dynasty treasure banknote 2,000 Zhejiang tax bills.

For the Qing Dynasty treasure banknotes, those who like Jin Yong dramas will be no strangers, the most important trading role in "The Legend of Deer and Ding" is it, at that time, Wei Xiaobao often took out a large banknote with a market value of several thousand taels of silver, which was called a local tyrant.

In fact, it can't stand up to scrutiny, Ao Muyang looked at the introduction on the Internet, the face value of the banknotes issued by the Qing Dynasty is not large, and the face value he got is 'two thousand Wen', the face value is already quite large, but it is only one or two silver.

According to the regulations of the Qing Dynasty's Household Treasure Banknote Bureau, one tael of silver is worth 2,000 of the treasure banknotes in the official bills, and 2,000 of the treasure banknotes are worth one tael of silver, which is parallel to the big money and the money......

However, after the depreciation due to the excessive issuance, the common people suffered serious losses, to the end of Xianfeng, this thing almost into waste paper, and later to the first year of Tongzhi, this treasure banknote even stopped being used.

As a result, the banknotes were not in use for a long time, they were not in the market for a long time, and today they have become very rare, so they are highly valued in the modern collector's market.

There are relevant auction records on the Internet, and one such treasure banknote appeared at Christie's Hong Kong Spring Auction last year, specifically 'Xianfeng 2nd Year Daqing Treasure Banknote 500 Wen Tax Bill', which was auctioned at a high price of 200,000 yuan.

Ao Muyang counted, and there were a total of eight such banknotes in the first small box, which was about 1.6 million.

One million ,600,000 is a lot, which is nothing for his worth, but this thing can be seen in the world, and he can openly use this money for consumption, unlike the cash obtained from selling the treasures of eunuchs.

With a feeling of joy, he opened another box and prepared to collect another batch of Daqing treasure banknotes - no, another batch of yuan.

This box is heavier, at least twice as heavy as the previous one, and apparently there are more Daqing treasure banknotes inside, no, more yuan.

As a result, he was disappointed when the box was opened, there were no banknotes in this small box, not one, and inside was a bunch of envelopes!

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

The rice paper was full of words, and the handwriting was already vague, Ao Muyang carefully identified it and recognized that it might be a letter to his family.

The reason is that the cowhide envelopes are affixed with stamps, some of which are yellow, some are green, some are large, some are small, and no matter what, there are the words of the Daqing Post Office on them, as well as the marks of one cent silver and five cents of silver.

Most of the words on the family letter are not clear, only the beginning of the title is heavy, you can see the name of the parents, even if such a thing is left by a celebrity, it is not worth much.

And Ao Muyang felt that this book was not from the hands of celebrities, it should have been left by the captain or first mate, otherwise it would not have appeared in the cockpit.

He stuffed the brown paper back into the envelope and left it with the Great Qing Treasure Banknote, which was left untreated, and the Great Qing Treasure Bank was carefully sprayed with a layer of antioxidant.

After all, there was a harvest of about 1.6 million, Ao Muyang was still quite satisfied, and then he took a photo of the Daqing treasure banknote and sent it to the old man Cheng Deming, wanting to ask him about the value of this treasure banknote.

As a collector, he has to go around to participate in auctions, private collections, and universities to identify some unearthed cultural relics.

When Ao Muyang sent the photo, he happened to be back in Hongyang, so he took the initiative to call over: "Hey, Xiao Ao, you are also enough to pick the door, if you find cultural relics, don't call me if you send >."