After Vespasian took the black-skinned samurai sword, he suddenly showed a look of surprise on his face. You should know that at this time, the ancient Roman daggers were generally only thirty or forty centimeters long, and the sword body was generally relatively wide and thick. The main reason for this is that the metal casting technique is not good. The Roman daggers are called the sword of conquering the world. However, although they have such a reputable name, their quality is actually very poor. They are usually unquenched, so they are very soft. If the sword body is too long, it will easily break or bend, and they cannot effectively stab.

Moreover, because the material is not hard enough, the blade cannot be cast sharply. The Roman dagger can only be used to stab. It is almost impossible for the scene in the movie to cut off the enemy's head with one sword.

Vespasian was an emperor from a military background and naturally had a very good understanding of these things, but the strange-shaped weapon in front of him completely subverted his common sense.

The 88k samurai sword is nearly one meter long, which is very shocking to the cognitive impact of the ancients. Even before it was pulled out, Vesan felt that Lin Tianyu's weapon was simply a decorative thing and could not have real combat.

But when he pulled out the knife and saw the shiny blade with his own eyes, this idea was broken all at once.

As a former warrior, Vepasian had a special affection and love for weapons. He gently pulled out the samurai sword from the scabbard and waved it gently twice. The heavy feeling made him lose his mind.

He carefully observed the thickness of the mirror-smooth blade and the sharpness of the blade. He gently bounced the blade with his fingers, and gently felt the sharpness of the blade. His fingers suddenly hurt. The blade was so sharp that it cut a small hole in his finger with a slight touch.

Looking at the blood on his fingers, Vespasian was a little lost. He suddenly spoke, "The first time I have seen such an amazing weapon!"

His expression seemed to suddenly become excited, "You are right. Your country is indeed far stronger than Rome. I never believed such weapons really exist in this world, but now everything has been changed. If I can have the skill of casting such weapons, if I can have an army equipped with such powerful weapons, then I will be invincible!"

He stared at the night sky excitedly, as if he had already seen the scene of himself leading the army to sweep the world. Suddenly his face changed: "No!" He turned around and looked at Lin Tianyu, "If I guessed correctly, this kind of weapon could not be mass-made. Am I right?"

"Oh my goodness!" Lin Tianyu thought to himself, but his face did not show it. If the other party could think he would be relaxed, otherwise if the Roman emperor asked him to hand over the skills of casting such weapons, where would he have a lifelong life?

"You are right, Your Majesty the Emperor. This sword is a rare treasure even in my country. It was created by a famous craftsman who spent three years and worked hard. It is indeed impossible to mass-made."

"But even so, the weapons of ordinary soldiers in your country are far stronger than Rome."

"That's true." Lin Tianyu still did not deny Vespasian's speculation this time.

Seeing the Roman emperor fall into deep thought, Lin Tianyu thought that the other party wanted to get this samurai sword, which was nothing to him.

"Your Majesty seems to like this sword very much. If you really like it, I would like to give it to you."

Vespasian suddenly smiled when he heard his words. Compared to a magic weapon, he hoped that his soldiers would be equipped with ordinary weapons that were better than they are now.

"I am not a greedy person. Your weapon is indeed very good. I am willing to bid for it. For merchants, profit is the most important thing, right? Tell me, how much do you offer?"

Lin Tianyu had long expected that the other party would say this. After all, the other party is an emperor and would never take advantage of him. In fact, he had already wanted the price.

"If your Majesty wants, I hope to exchange it with me with your sword."

Lin Tianyu said so.

Before he sat down, he noticed that Vespasian wore a sword even when eating. This was probably the true nature of his soldiers. Vespasian's sword was also in style of a Roman dagger. It is naturally far from sharp as the 88k samurai sword in practicality, but at least in terms of appearance, it was quite beautiful. The scabbard was embedded with a whole piece of gold carving, and the tail of the hilt was embedded with an eyeball-sized ruby. The sword's guards were evenly inlaid with three smaller gems. The whole sword was like a piece of art made of gold gems.

Vespasian suddenly laughed when he heard Lin Tianyu's words. His sword was made of the best materials by the blacksmith with the highest craftsmanship in Rome, but even so, it was nothing compared to the weapon in front of him that could almost be described as incredible. The only thing worth boasting about was the gorgeous decoration. Now Lin Tianyu's request made him see one of the other's weaknesses.

"Your request is not overly high, I am willing to exchange it with you."

Seeing Lin Tianyu's face showing joy, Vepasian said again: "But compared to a precious collection, I hope to obtain the skills of building ordinary weapons on a large scale. If I pay for such skills, can you get it for me?"

Lin Tianyuxin said I had to go there. I would have known that I would have made some drawings and formulas for forging cold weapons. Now he would have no choice but to ask him to do some skills forging weapons.

Lin Tianyu became wise in a hurry and tried his best to recall the information he found online. Suddenly, a flash of inspiration came to his mind.

"I don't know much about casting weapons, but I know some general principles. Since Your Majesty is so generous, I am willing to contribute these principles."

That's very obvious. I'll say whatever I have. Just give it to you.

Vespasian nodded and signaled him to say nothing.

"My craftsmen will quench the weapons when forging weapons, that is, heat treatment, but I found that Roman craftsmen did not have this step when casting weapons. I think this may be the reason why the Roman dagger is not sharp and hard enough."

"Quining!?" Vespasian "In fact, some craftsmen will use this technique, but once the quenching weapon becomes hard, it will also become brittle and easily break. Therefore, this technique will only be used when casting special tools such as engraving knives."

Lin Tianyuxin said of course I knew it. He knew it clearly when he was searching the information online. He also knew that the Han people of the same era had the solution to this problem, which was partial tempering.

"In fact, the solution to this problem is very simple, just perform local quenching."

"Local quenching?" Vespasian obviously didn't understand this term.

"It is to quench the sword blade and the sword tip, and the sword body is not quenched. This is not only sharp and sharp, but also does not destroy the toughness of the sword body. In addition, when casting weapons in this way, it is best to use a one-way blade and thick ridge design, so that there is enough destructive power when chopping and slashing, which can easily penetrate the defense of leather armor, and it is best to deal with barbarians without metal armor."

Vespasian's eyes lit up, and he looked at the samurai sword in his hand again. It was obvious that this weapon was a representative work of one-way blade and thick ridge.

He was considering the possibility of this design in his mind, and the more he thought about it, the more excited he became. If the problem of limited weapon length was solved, the combat effectiveness of the Roman soldiers equipped with sharper weapons would undoubtedly be greatly improved, and his position as an emperor would also become more stable due to this military reform.

"The principles you provide sound very useful. If they can be realized, I will never be stingy with the rewards you. Today's dinner is here. If you are not full, you can bring some food back to eat. I think I need to lose my companion."

He said, as he untied his sword from his waist, threw it to Lin Tianyu, turned around and shouted at the guards, "Go and summon my military minister, general and construction officer, I have important resolutions to discuss with them."

While speaking, he had already walked out of the hall. Lin Tianyu was stunned and thought to himself that this old man was really full of energy.

Of course he wouldn't have a few bites to eat. Since the dinner was over, he was so happy to leave early. He hung the sword that the emperor gave him on his waist and left Vespasian's palace.
Chapter completed!