Does anyone know Mr. Zheng Jingyuan's calligraphy works? About how much?

Teacher Zheng Jingyuan is a famous sinologist, Yi-ology scholar and calligrapher in China, and a distinguished artist of the State Guest. Cultural Ambassador of China; Ambassador of China for Painting and Calligraphy; Ambassador of China's artistic image; He is also a national first-class, senior and super calligrapher and executive chairman of the International Association of Painters and Calligraphers. Chief art adviser of the Great Hall of the People; Visiting Professor of the National Museum; Chief Visiting Professor, Calligraphy Department, Central Academy of Fine Arts; Professor of Tsinghua University Calligraphy Department; Last year, Mr. Zheng's 4-foot vertical work of "Bamboo Newspaper Peace" was robbed of 4,998,600 yuan again. The international price of Zheng Jingyuan's works has reached more than RMB 65,438+0,000,000 per square foot.