What does the largest imperial seal in ancient times look like?

In the history of China, there are not a few artifacts that can be called the national treasure, but I'm afraid none of them can match the imperial seal. It is the goal that aspirants dream of pursuing, and it is also the object that historians describe with great colors. Hong Kong's Wen Wei Po article said that what enveloped it was heavy swords and shadows, low drums and horns, and its appearance and disappearance even became a symbol of dynasty change and country change. ?

the national imperial seal has an extraordinary origin. After Qin Shihuang established the first feudal dynasty in China's history, he finally got the glittering and translucent jade that made several generations of Qin kings miss each other so much in blood shed. Perhaps it is because I have searched for Jiuding several times, just as a eloping woman is eager to marry the Ming media. Perhaps it is to show her unprecedented supreme greatness. Qin Shihuang made a "national decree" with He Shibi. The jade seal was placed on the dragon's throne, and the seal was inscribed by Prime Minister Li Si with eight characters: "Being ordered by heaven, I will live forever". The priceless jade, exquisite carving and unparalleled calligraphy make this jade seal an exquisite work of art. Passing the imperial seal has since become a symbol of receiving orders from heaven.