Are Xu Beihong’s scrolls cultural relics?

It is a national treasure-level cultural relic. When it comes to Xu Beihong, I think many people know it. After all, he is such a famous painter. Especially the horses he painted are priceless. He is also an amazing figure in the painting world. His spirit is worth learning from. He was laughed at by foreigners while studying abroad. He has been strict with himself in order to prove himself and bring honor to the motherland. In the end he did succeed. But what the editor wants to introduce today is not him as a person but a story about him. This story is also related to a painting, but this painting is not his work, but Wu Daozi's. Xu Beihong spent 10,000 yuan to buy a painting, which was bought by an expert for 200,000 yuan, and was eventually regarded as a treasure by the country!