When drawing this picture, where, what paper, what kind of brush, which painting case, etc. As long as we find these things, we can also prove the original paintings and calligraphy.

Second, find documentary evidence.

It is in calligraphy and painting that other characters, special symbols and symbols of calligraphy and painting can be found. It also includes documentary evidence recorded in other ways, such as articles, notes and documents.

Third, look for witnesses.

It is to record the truth of an event in the language of self-report and inquiry. When the author writes and draws, which witness is present, try to find as many people as possible to verify the authenticity of the witness.

Fourth, collect testimony.

Generally, the paintings and calligraphy that need to be identified are very old, and it is difficult to find witnesses, so it is very important to collect testimony. Of course, it is more important to grasp the authenticity of testimony and guard against perjury and false testimony.

Verb (abbreviation for verb) Listen to the owner.

The owners here, including the author, the holder and the current owner, are familiar with and impressed by the works, and have a better understanding of the flow direction and collection process of the works, so their statements are closer to the truth.

Sixth, respect the appraisal conclusion.

Generally, appraisers in our country are evaluated from interns, technicians, assistant engineers and engineers. Therefore, they all have at least ten years of professional experience. Besides their morality, they must also be protected by law. Once they make mistakes in the appraisal, they will be disqualified for life. So they will be cautious, so they should respect their appraisal conclusions.

Extended data:

Many people need to know the knowledge of ancient calligraphy and painting appraisal. The first is the staff of museums and libraries. Museums and libraries have collected the richest paintings and calligraphy works in the past, and will try their best to collect and protect unearthed and handed down cultural relics to serve the society.

If the staff of museums and libraries don't understand the identification of calligraphy and painting, and encounter ancient calligraphy and painting, it is difficult to distinguish between authenticity and inferiority, and they will be confused with it, turning the treasures into waste paper.

Secondly, it can't provide reliable information and convenience for painting and calligraphy lovers and artists; Third, the hidden light is ignorant of identification, and it is still ignorant of color and deafness, and it is laughed at by people of insight. In this way, museums and libraries cannot protect cultural relics and use them to serve the society.

Followed by literature and history researchers. Many calligraphy and painting works handed down from ancient times directly reflect real life and are precious and vivid historical materials for studying social life and cultural relics laws and regulations in past dynasties.

For example, the transparent bronze mirror in Shanghai Museum, which is "clear the inner substance to make it clear", is an object in the middle and late Western Han Dynasty. When the light shines on the mirror, the patterns are corresponding, which clearly reflects the patterns on the front and back of the bronze mirror to the opposite wall. This exquisite craft and the scientific principles contained in it are amazing.

At the same time, nearly a thousand stone reliefs and brick reliefs of the Han Dynasty were found, covering a wide range of subjects, except the life stories of the deceased. There are ancient myths and historical stories, such as Fuxi, Nuwa, Shennong, ancient sages, dutiful sons and virgins; There are Leigong, Rain Master, Fengbo, Beidou, Weaver Girl, pavilions, boats and horses.

There are famous story paintings in Wushi Temple, such as Jing Ke Stabbed the King of Qin, Mu Wang Meet the Empress Dowager, and Dog Bites Zhao Dun. The portrait bricks found in Chengdu, Sichuan Province are "shooting" and "harvesting", which describe shooting geese and cutting rice at the water's edge. "Market" describes the production process of salt, and so on. However, in order to make use of these materials, we must first stop seeking truth.

Otherwise, if the information relied on is false, then the research results are of course false, and its research work will be in vain.

If collectors don't understand calligraphy and painting identification, they will spend a lot of money to buy fakes. If the looters don't know the appraisal of calligraphy and painting, and don't know who is expensive and who earns, they can't achieve the purpose of making profits.