This jar is decorated in underglazed cobalt blue with a double lotus petal collar around the mouth, vertical panels around the body and scrolling motifs above the foot.Although heavily influenced by the Chinese ceramic tradition, Vietnamese materials and potting styles are unique. Technically not ‘porcelain’, which is translucent and pure white, these stonewares are different in appearance from Chinese and other Southeast Asian ceramics. Vietnamese wares are typically more heavily potted and have an off-white clay body. Cobalt oxide could have been imported from West Asia via China to produce the blue tones.Vietnam entered the international trade during the 14th century and produced the greatest volume and variety of wares for Southeast Asia, particularly Indonesia, the Philippines and Malaysia. However, by the 16th century, due to intense competition from the Chinese kilns, the export of Vietnamese wares to these markets was greatly reduced.