What does the official seal mean?

Official seal is a symbol of official power, which has its own characteristics and rich cultural connotations in different historical periods.

The feudal dynasty in China was composed of central and local governments. Official seals include imperial seals, imperial treasures, official seals of North Korean officials at all levels, official seals of local administrative organs, official seals of institutions at all levels, official seals of military institutions, official seals of subordinate institutions, official seals of warlord regimes, official seals of ethnic minority regimes and peasant uprising regimes.

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The style of official seal has changed from simple to complex, and then from complex to simple. At first, it was a nose buckle and a tile buckle, which were small in size and light in weight, and could be tied with a rope and easy to carry. Followed by tigers, dragons, turtles, lions, fish, snakes, ostriches, horses, cattle, animals and so on.

The emperor's royal treasure is a tiger button, and the official seals of ethnic minorities are mostly ostrich buttons. Since the Song Dynasty, Yubao's button style has changed from the previous generation to the Panlong button. Since then, Yubao has been customized with dragon buttons until the late Qing Dynasty, while other official buttons have been simplified into pin buttons and cylindrical buttons.