Dating chinese porcelain
Though Chinese potters developed underglaze red decoration during the Yuan dynasty (1279-1368 C.
E.), pottery decorated in underglaze blue was produced in far greater quantities, due to the high demand from Asia and the Islamic countries of the Near and Middle East.
The globular body, tall cylindrical neck and dragon handle of this jug all imitate contemporary metalwork of Timurid Persia.
The crowded decoration of this jug is a feature of early blue-and-white porcelain that continued into the early part of the Ming dynasty.
The first use of overglaze enameling is found on the slip-covered wares of northern China.
This was an innovation of the Jin dynasty (1115-1234), with documented pieces as early as 1201.
Hongwu banned foreign trade several times, though this was never fully effective.
The import of cobalt was disrupted, however, which resulted in a drop in the production of blue-and-white porcelain.
The blue-and-white wares of the fourteenth and fifteenth centuries often took their shapes from Islamic metalwork.
It was ground into a pigment, which was painted directly onto the leather-hard porcelain body. "Blue-and-white" porcelain was used in temples and occasionally in burials within China, but most of the products of the Yuan dynasty (1279-1368) appear to have been exported.
Trade remained an essential part of blue-and-white porcelain production in the Ming and Qing dynasties (1644-1911).
The term "overglaze enamels" is used to describe enamel decoration on the surface of a glaze which has already been fired.
Once painted, the piece would be fired a second time, usually at a lower temperature.