How much is Fu Zengxiang's calligraphy, the market situation of his works, and the market situation

In chapter 13 of Lin Yutang's masterpiece Clouds in Beijing, Fu Zengxiang appears like this: "Mr. Fu, whose name is Zeng Xiang, is thin and has a moustache. He is really an imaginative and talented scholar! His two hobbies are traveling to famous mountains and rivers and collecting and editing ancient books. Later, he taught typology at the university-he was recognized as an authority on typology-and he insisted on lying on the sofa, and the students looked at the tall and thin old man with infinite respect. "

The market price starts at 200,000 square feet. There are few real works left.