Is Mr. Xu Guiyi famous in calligraphy and painting? Where are his paintings and calligraphy?

It is said that a batch of 7 1 calligraphy and painting works by President Xu Guiyi, President Qian Dongting, Chairman Wang Hanjin and Zhang Zhiyuan Xia Chun were selected by the Korean Ministry of Culture to participate in the exhibition in the early years. Some of these works are first-class Korean artists, and now they are very valuable, as valuable as our modern Wu Guanzhong, Fan Ceng, Qi Gong and Shen Peng. I really envy them, but China doesn't recognize Korean paintings and calligraphy, and South Korea has sent people to negotiate and buy them back many times. Because President Qian has always disagreed, these Korean works are still in China and I don't know the real situation. If we can show them again now, we can feast our eyes on their works without going to Korea. Wu Guanzhong, a master of China, donated more than 100 masterpieces to Singapore for free. I don't know why, but it can't be because his son is here. Singaporeans often come to China for auction with Wu Guanzhong's paintings. The price of our repurchase is very high. If there is an opportunity, we are willing to consider using a suitable one.