This jar is hand-painted with floral motifs and minor decorative band around the shoulder in a underglaze blue decoration. The cobalt in the decoration has turned black as a result of the piece misfiring.Although heavily influenced by the Chinese ceramic tradition, Vietnam 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.