Liu Mu said that he wanted to rely on a plane that could fly in the sky, which meant that it was impossible to eat a fat man in one bite. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

But Yan Liben didn't understand it that way.

"I heard, you said, people can fly in the sky." Yan Liben also laughed, just thinking that Liu Mu was telling a joke.

smiled, but saw Dugu Lanruo standing beside Liu Mu.

Yan Liben hurriedly sorted out his clothes: "Please Your Royal Highness the princess." ”

"Master Yan doesn't need to be polite, and he has to thank Master Yan for his brush. Changping has two doubts, please ask Master Yan to solve them. ”

"I know everything."

Yan Liben is 23 years old, and calling him a bachelor is not an official position. In the Tang Dynasty, bachelor was an honorific title used for learned and talented people. There are also scribes in the palace, the clerical officials of the Qin Palace, who can also be called bachelors.

The eighteen bachelors of the Qin Wangfu represent the top eighteen talented literati.

Dugu Lanruo opened her mouth and asked, "This copper coin is suspected of trespassing." My husband is sometimes too bold in doing things, so he is still a citizen. ”

This is just to say, if Liu Mu's words Dugu Lan don't believe it, this bold guy will dare to do anything.

"Back to the princess's words, since the fourth year of Wude, the sage has set a new money rule, ten wen is one tael, and one wen is one penny. However, it did not customize its money surface pattern, such as the back of Yangzhou casting in Jiangnan has the word Chang. The words of Kaiyuan Tongbao are not officially customized, but to replace the meaning of the former Sui to create a prosperous era, and it is indispensable to make money. ”

Yan Liben had obviously done in-depth research, and brought a small box from his entourage.

There are seven different kinds of money in the box, and three of them are written Kaiyuan Tongbao. There are also four kinds that are written with Wude Prosperity, Tang Yuan Tongbao, etc. It's that the three Kaiyuan Tongbao fonts are different.

"Only the Kaiyuan Tongbao cast in Chang'an uses Ouyang Xun's handwriting. And the rest of the families, even if they cast Kaiyuan Tongbao together, wrote it themselves. The money on the market, one hundred and ninety-nine coins, is not minted in Chang'an. ”

"Why?" Dugu Lanruo asked this out of pure curiosity.

"One is the cost, the cost of casting money in Chang'an, it takes six dollars to cast a penny, and it can be said that it is a waste to cast money. Except for the Zheng family, the cost of minting a coin is only seven cents, but the Zheng family is unwilling to inform the Household Minting Department of their new coinage. Yan Liben only said this, obviously this is just the tip of the iceberg.

You know, the issuance of new money has always been difficult.

But Li Yuan's Kaiyuan Tongbao has created a new era of coins, and no matter which version of Kaiyuan Tongbao it is, there are still people using it in the Braided Dynasty.

"Cut, a mother money model coinage method is also worth keeping secret, I will trample him to death with a glass of water." Yanagi sneered on the side.

Yan Liben also smiled: "Yes, compared to our method, it is really not worth mentioning." And Mu Langjun is still very dark-hearted, he uses the sandwich method. ”

"What is the mezzanine method?" Dugu Lanruo asked.

Yan Liben took a blank of money that had not yet been stamped for the first time: "Your Royal Highness Princess, the upper and lower sides are fine brass, but the middle is cast iron. The money blanks are burned red and pressed together, and after this ten thousand stones are re-stamped, they can never be separated again. ”

Dugu Lanruo had a look of sudden realization: "Originally, I wanted to ask, will this use of high-grade brass be a loss." ”

"Apparently not." Yan Liben is very proud of the design of this mezzanine.

You must know that the current coins of the Tang Dynasty use a little more than eighty percent of copper, plus white wax and black tin. Willow wood has a little bit of lead added to it.

There are too many tinkers, and they turn blue after a long time.

Some people make money, and when they add three percent of tin, it becomes bronze.

Speaking of patterns, how can those sand models be compared with this exquisite stamping, and the small characters on this are still written by Yu Shinan, and the words used in various templates used in the next ten years were written at one time.

"A pillar of incense, a workbench can mint four hundred coins." Yan Liben said this with a very dissatisfied tone, and it was obvious that he wanted to be faster and more.

You know, this speed is much faster than turning sand coins.

A pillar of incense is five minutes, and according to the time of later generations, a workbench can produce more than 100,000 coins in one day and one night, and the minting volume of nearly 40 million copper coins in a year is quite considerable.

You must know that at present, including the gate valves, the amount of coinage in a year is only 100,000 yuan, that is, 100 million copper coins.

Moreover, there is more than one stamping machine in willow, and there is not only one workbench in a stamping machine.

Therefore, the coinage of willow wood can only be supplied with iron, copper and other raw materials, which can far exceed the total coinage of Datang in the country.

With the support of Li Shimin, the king of Qin in the Tang Dynasty, copper is not a problem.

Liu Mu helped Dugu Lanruo to sit down in a clean place: "Madam, it's a little dirty inside, you can rest here for a while, I'll go in and take a look and come out." ”

"Yes." Dugu Lanruo nodded slightly.

Liu Mu nodded at Yan Liben, and the two of them walked quickly towards the workshop.

In a hut, craftsmen are making molds, and the hut is guarded by all of Willow's cronies.

Inside the house, Yan Liben took out an iron mold: "Lang Jun, this matter is a little evil, otherwise we will report to His Royal Highness the King of Qin." ”

"No, let him be the master of this matter, in case there is any trouble, he can't afford it. I don't care, I'm a small citizen anyway. Yanagi said as he took the iron mold and pressed it on the ink, leaving an imprint on the paper.

This avatar is that of the Tang Emperor Li Yuan.

"This heavy silver coin must be made. Not too many, a few hundred thousand pieces is enough. ”

"Lang Jun, my opinion is that this is still gold." Yan Liben proposed.

Liu Mu shook his head: "Gold coins also use this, but do we have so much gold with gold?" So take silver, and remember, make some more steel money, five, two, one. ”

"Does it work?"

"Trust me, it works. You think, the price of a bucket of millet on the market yesterday was only 18 yuan, so how much is a pound to buy. Besides, four pieces of oil cake are a penny, so what about buying only one? Liu Mu persuaded Yan Liben in a few words.

Yanagi asked again: "What about another mold?" ”

"Lang Jun, I really don't dare to do this. You're crazy to do that, you're going to lose your head. Yan Liben stood in front of the cabinet, and it was obvious that the iron mold had been made, but it was stored in the thick iron-framed iron cabinet.

"Brother Yan, you really can."

"Nope." Yan Liben blocked Liu Mu, but gave Liu Mu a good money.

This money was made with the portrait of Li Shimin, the king of Qin, as a template.

"It's beautiful." Liu Mu nodded with satisfaction, Yan Li snatched it from Liu Mu's hand very quickly, and quickly threw it back into the iron cabinet: "You don't want to take this out, only one piece has been trial-made." ”