Does Xi have a formal calligraphy and painting appraisal, free of charge?

Xi 'an has a formal appraisal institution for calligraphy and painting, among which Defengtang Gallery is a professional institution in Xi 'an, which uses scientific methods to appraise calligraphy and painting with traditional appraisal as the mainstay and modern technology as the supplement. Mr. Lu is the director of Yu Youren Calligraphy Society in Shaanxi Province and the vice chairman of Shaanxi Gallery Industry Association. In addition, the Datang West City Museum also has free calligraphy and painting appraisal activities.

Please note that calligraphy and painting appraisal requires certain professional knowledge and skills, and there are also certain risks. If you have high requirements on the accuracy of calligraphy and painting appraisal, it is recommended to seek the help of professional appraisal institutions or experts.