There are three types: blue and white writing, Yin script, and Yang script engraving. Blue and white writing is the most common. The inscriptions are usually in regular script, plus double circles and double frames are added.
The markings of the Chenghua Year System of the Ming Dynasty also had a development process. The markings produced in the early and middle periods of Chenghua were also the same as those of the Xuande Period. They were vertical double lines of blue and white regular script "Chenghua Year System of the Ming Dynasty" outside Surrounded by a double circle of blue and white. In the middle and late stages of development, its style has developed new, adopting Chenghua's first blue and white regular script vertical double-line writing "Da Ming Chenghua Annual System" surrounded by a new style of blue and white double frame.
Extended information:
Introduction to the markings made during the Chenghua period of the Ming Dynasty?:
The markings on Jingdezhen official kiln porcelain during the Chenghua period of the Ming Dynasty: Chenghua official kiln making in the Ming Dynasty, such as Made by one person. The writing style is natural, with bones in the flesh, and strength in the softness. It is both straight and lean, yet the writing style is round.
Mr. Sun Yingzhou concluded: "The pointed round head of the large characters is not very high. The characters are written hard until the waist. The characters are seven-level and have a slight head. The clothes that make the characters are less horizontal and the knife is wider. The clear characters are narrow and can be realized after thousands of years. The word "head, shoulders and waist".
The first sentence Mr. Sun said refers to the upper end of the second stroke of the character "大", which is pointed and rounded, and the head is not high. The second sentence refers to the fifth stroke of the word "成", which is straight and blunt. The third sentence means that the single side of the word "hua" and the upper end of the side of "qi" are equal, or close to the same.
The fourth sentence refers to the second stroke of "yi" in the lower part of the word "Zhi", which rarely goes beyond the vertical knife on the right. The fifth sentence refers to the "moon" on the right side of the word "ming", which is narrow at the top and wide at the bottom, and the word "year" is fat. The sixth sentence refers to the point of the last stroke of the word "成", some are at the level of the head, some are at the level of the shoulders, and some are at the waist.
Reference materials:
Baidu Encyclopedia—Ming Chenghua Blue and White Porcelain