Looking at the hair color and standard of blue and white flowers, I personally prefer the late Ming Dynasty. The specific judgment depends on the bottom. Things are worthless when they are disabled. If they are very disabled, they can only be used as specimens.

Blue and white jade is a kind of Hetian jade. More common in Xinjiang, China, the color is darker than spot ink and poly ink. Its present state is black and white, and it is named blue and white jade because of its blue interior.