Chinese Art A blue stoneware Jun JarChina, Qing dynasty, 19th century. . Cm 29,50 x 25,00. Stoneware globular vessel covered by thick blue glaze dotted with purple flecks. This jar, probably produced in Jingdezhen in the 19th century, replicates a typical artifact of the Song era (960-1279) attributable to the Jun-ware group, one of the five most popular types of ceramics of the antiquity, with Ru, Guan, Ding and Ge.