What material is the official seal made of?

The official seal was a symbol of the identity and authority of an official in ancient China. It was used to seal and verify documents. The shape and material of the official seal varied according to the rank and position of the official, such as gold, silver, copper, and so on. The use of official seals had a strict hierarchy. Officials of different levels wore different levels of seals and ribbons. The use and management of official seals were of great significance in the appointment, dismissal, transfer and punishment of ancient officials.

We can conclude that the picture of the official seal refers to the seal used by institutions, organizations, enterprises, and institutions. The image of the official seal could be scanned and saved as a picture, and then inserted into a Word or a PDF-file. After inserting a picture, you can adjust the layout of the picture so that it is below the text to prevent it from obscuring the text. In addition, you can also use the online seal generator to generate a custom seal image.

The size of the ancient official seal had changed over time. From the Qin and Han Dynasties to the Northern and Southern Dynasties, the size of the official seal was roughly 20 mm to 30 mm square. By the Sui and Tang Dynasties, the size of the official seal had increased to 50 to 60 mm square. The size of the official seal of the Ming Dynasty was generally 10-12 cm square, and the handle of the seal was gradually increased. Some were as high as 8 cm, and the edge of the seal was also gradually widened. The official seal of the Song Dynasty was roughly 5 to 5.5 centimeters in size. Therefore, the size of the ancient official seal changed in different periods.

In ancient times, official seals were mostly square or round, with regular and exquisite shapes. In the Qin and Han Dynasties, official seals were mostly square, with a side length of about 2-3 centimeters, known as the "square inch seal." With the changes of the past dynasties, the shape of the official seal also changed. During the Eastern Jin Dynasty, a stone official seal appeared. The side length was about 3.7 centimeters, and the words "Lingling Prefecture Seal" were engraved on it. In the Tang Dynasty, the surface of the official seal was enlarged, and the strokes of the seal became thinner. Some official seals used curved and revolving seal characters to fill the space. In the Eastern Han Dynasty, the official seal was written in a style between Li and Kai, creating a precedent for official seals. Generally speaking, the ancient official seals were of various shapes, but most of them were neat and exquisite.

The lion official seal was a fourth-grade official.

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The official seals of the Tang Dynasty were mainly made of copper. Some representative official seals included the seal of Shazhou, the seal of Qianfeng County, and the seal of the Kingdom of Qi. Most of these official seals were square in shape, shaped like nose buttons. The size of the official seal gradually increased during the Sui and Tang Dynasties, and Zhu Wen's small seal script was used as the calligraphy style of the seal. In terms of production method, the official seal of the Tang Dynasty used the welding method, which was to use small copper strips to be welding according to the composition of the strokes. During the Sui and Tang Dynasties, the official seal system also changed. The management of official seals was changed from private ownership to public ownership, and the use and ownership of official seals were separated. The change of the official seal in the Sui and Tang dynasties had a profound influence on the seal system of later generations. However, the search results provided did not provide a clear answer to the specific details and more information about the official seal of the Tang Dynasty.

We can get some characteristics of the official seal of the Tang Dynasty, but we don't provide a specific picture of the official seal of the Tang Dynasty. Therefore, I do not know how to answer this question.

The pictures of the official seal of the Jin Dynasty were not in the search results provided.