Jun Kiln. Caviar orange peel glaze. Yuan. The jade pot spring bottle is 35 cm high. Jun porcelain began in the Tang Dynasty and flourished in the Song Dynasty. It is one of the five famous porcelains in ancient China, and is famous for its unique glaze and kiln transformation produced by its firing method [3]. As an important symbol in the history of Chinese ceramic art, Jun porcelain occupies an important position in the history of world ceramics development. Its unique kiln transformation art is widely loved by ceramic enthusiasts for its artistic characteristics of "one color in the kiln, and many colors out of the kiln". This piece of Jun porcelain is a very rare collection of treasures, there is a poem saying: A thousand kilns produce a treasure. Delicate color.